CAT1025YI-25-G,CAT1025YI-25-G pdf中文资料,CAT1025YI-25-G引脚图,CAT1025YI-25-G电路-Datasheet-电子工程世界

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CAT1024, CAT1025

Supervisory Circuits with I C Serial 2k-bit

CMOS EEPROM and Manual Reset

FEATURES

Precision Power Supply Voltage Monitor

— 5 V, 3.3 V and 3 V systems

— Five threshold voltage options

Active High or Low Reset

— Valid reset guaranteed at V

= 1 V

400 kHz I

C Bus

2.7 V to 5.5 V Operation

Low power CMOS technology

16-Byte Page Write Buffer

Built-in inadvertent write protection

— WP pin (CAT1025)

1,000,000 Program/Erase cycles

Manual Reset Input

100 year data retention

Industrial and extended temperature ranges

Green packages available with NiPdAu Lead

finished

DESCRIPTION

The CAT1024 and CAT1025 are complete memory

and supervisory solutions for microcontroller-based

systems. A 2k-bit serial EEPROM memory and a

system power supervisor with brown-out protection

are integrated together in low power CMOS techno–

logy. Memory interface is via a 400 kHz I

C bus.

The CAT1025 provides a precision V

sense circuit

and two open drain outputs: one (RESET) drives high

¯¯¯¯¯¯

and the other (RESET) drives low whenever V

falls

below the reset threshold voltage. The CAT1025 also

has a Write Protect input (WP). Write operations are

disabled if WP is connected to a logic high.

The CAT1024 also provides a precision V

sense

¯¯¯¯¯¯

circuit, but has only a RESET output and does not

have a Write Protect input.

The power supply monitor and reset circuit protect

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

voltages support 5 V, 3.3 V and 3 V systems. If power

supply voltages are out of tolerance reset signals

become active, preventing the system microcontroller,

ASIC or peripherals from operating. Reset signals

become inactive typically 200 ms after the supply

voltage exceeds the reset threshold level. With both

active high and low reset signals, interface to

microcontrollers and other ICs is simple. In addition,

¯¯¯¯¯¯

the RESET pin or a separate input, ¯¯¯, can be used

as an input for push-button manual reset capability.

The CAT1024/25 memory features a 16-byte page. In

addition, hardware data protection is provided by a

sense circuit that prevents writes to memory

whenever V

falls below the reset threshold or until

reaches the reset threshold during power up.

Available packages include an 8-pin PDIP and a

surface mount 8-pin SO, 8-pin TSSOP, 8-pin TDFN

and 8-pin MSOP packages. The TDFN package thick-

ness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm.

For Ordering Information details, see page 19.

Characteristics subject to change without notice

Doc. No. MD-3008 Rev. R

CAT1024, CAT1025

BLOCK DIAGRAM

EXTERNA LOAD

DOUT

ACK

VCC

VSS

WORDADDRESS

BUFFERS

START/STOP

LOGIC

2kbit

EEPROM

COLUMN

DECODERS

SENSEAMPS

SHIFT REGISTERS

THRESHOLD VOLTAGE OPTION

Part Dash

Number

-45

-42

-30

-28

-25

Minimum

Threshold

4.50

4.25

3.00

2.85

2.55

Maximum

Threshold

4.75

4.50

3.15

3.00

2.70

SDA

XDEC

WP*

CONTR

LOGIC

DATA IN STORAGE

HIGHVOLTAGE/

TIMING CONTR

RESET Controller

Precision

Vcc Monitor

STATE COUNTERS

SLAVE

ADDRESS

COMPARATORS

SCL

RESET*

* CAT1025 Only

RESET

PIN CONFIGURATION

DIP Package (L)

SOIC Package (W)

TSSOP Package (Y)

MSOP Package (Z)

¯¯¯

¯¯¯¯¯¯

RESET

¯¯¯

¯¯¯¯¯¯

RESET

CAT1024

SCL

SDA

(Bottom View)

TDFN Package: 3 mm x 3 mm

0.8mm maximum height - (ZD4)

NC 7

CAT1024

SCL 6

SDA 5

WDI 7

CAT1025

SCL 6

SDA 5

¯¯¯

¯¯¯¯¯¯

RESET

3 NC

4 V

¯¯¯

¯¯¯¯¯¯

RESET

3 RESET

4 V

CAT1025

SCL

SDA

Doc. No. MD-3008 Rev. R

Characteristics subject to change without notice

CAT1024, CAT1025

PIN DESCRIPTION

¯¯¯¯¯¯

RESET/RESET:

RESET OUTPUTs

(RESET CAT1025 Only)

¯¯¯¯¯¯

These are open drain pins and RESET can be used

as a manual reset trigger input. By forcing a reset

condition on the pin the device will initiate and

maintain a reset condition. The RESET pin must be

connected through a pull-down resistor, and the

¯¯¯¯¯¯

RESET pin must be connected through a pull-up

resistor.

SDA:

SERIAL DATA ADDRESS

The bidirectional serial data/address pin is used to

transfer all data into and out of the device. The SDA

pin is an open drain output and can be wire-ORed

with other open drain or open collector outputs.

SCL:

SERIAL CLOCK

Serial clock input.

¯¯¯:

MANUAL RESET INPUT

Manual Reset input is a debounced input that can be

connected to an external source for Manual Reset.

Pulling the MR input low will generate a Reset

condition. Reset outputs are active while ¯¯¯ input is

low and for the reset timeout period after ¯¯¯ returns

to high. The input has an internal pull up resistor.

WP (CAT1025 Only):

WRITE PROTECT INPUT

When WP input is tied to V

or left unconnected write

operations to the entire array are allowed. When tied

to V

, the entire array is protected. This input has an

internal pull down resistor.

PIN FUNCTION

Name

¯¯¯¯¯¯

RESET

SDA

SCL

RESET

¯¯¯

Function

No Connect

Active Low Reset Input/Output

Ground

Serial Data/Address

Clock Input

Active High Reset Output

(CAT1025 only)

Power Supply

Write Protect (CAT1025 only)

Manual Reset Input

OPERATING TEMPERATURE RANGE

Industrial

Extended

-40ºC to 85ºC

-40ºC to 125ºC

CAT10XX FAMILY OVERVIEW

Device

CAT1021

CAT1022

CAT1023

CAT1024

CAT1025

CAT1026

CAT1027

WDI

Manual

Reset

Input Pin

Watchdog

Monitor

SDA

WDI

Write

Protection

Independent

Auxiliary

Voltage Sense

RESET:

Active High

and LOW

EEPROM

For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163

data sheets.

Characteristics subject to change without notice

Doc. No. MD-3008 Rev. R

CAT1024, CAT1025

ABSOLUTE MAXIMUM RATINGS

(1)

Parameters

Temperature Under Bias

Storage Temperature

Voltage on any Pin with Respect to Ground

(2)

with Respect to Ground

Package Power Dissipation Capability (T

= 25°C)

Lead Soldering Temperature (10 s)

Output Short Circuit Current

(3)

Ratings

–55 to +125

–65 to +150

–2.0 to V

+ 2.0

–2.0 to 7.0

1.0

300

100

Units

ºC

D.C. OPERATING CHARACTERISTICS

= 2.7 V to 5.5 V and over the recommended temperature conditions unless otherwise specified.

Symbol

CC1

CC2

IL(4)

IH(4)

Parameter

Input Leakage Current

Output Leakage Current

Power Supply Current (Write)

Power Supply Current (Read)

Standby Current

Input Low Voltage

Input High Voltage

Output Low Voltage

¯¯¯¯¯¯

(SDA, RESET)

Output High Voltage

(RESET)

= 3 mA

= 2.7 V

= -0.4 mA

= 2.7V

CAT102x-45

= 5.0 V)

CAT102x-42

= 5.0 V)

Reset Threshold

CAT102x-30

= 3.3 V)

CAT102x-28

= 3.3 V)

CAT102x-25

= 3.0 V)

RVALID

(5)

Test Conditions

= GND to V

SCL

= 400 kHz

= 5.5 V

SCL

= 400 kHz

= 5.5 V

Vcc = 5.5 V,

= GND or V

Min

-2

-10

Typ

Max

Units

µA

-0.5

0.7 x Vcc

0.3 x V

+ 0.5

0.4

- 0.75

4.50

4.25

3.00

2.85

2.55

1.00

4.75

4.50

3.15

3.00

2.70

Reset Output Valid V

Voltage

Reset Threshold Hysteresis

Notes:

(1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this

specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.

(2) The minimum DC input voltage is –0.5 V. During transitions, inputs may undershoot to –2.0 V for periods of less than 20 ns. Maximum DC

voltage on output pins is V

+0.5 V, which may overshoot to V

+2.0 V for periods of less than 20 ns.

(3) Output shorted for no more than one second. No more than one output shorted at a time.

(4) V

min and V

max are reference values only and are not tested.

(5) This parameter is tested initially and after a design or process change that affects the parameter. Not 100% tested.

Doc. No. MD-3008 Rev. R

Characteristics subject to change without notice

CAT1024, CAT1025

CAPACITANCE

= 25ºC, f = 1.0 MHz, V

= 5 V

Symbol

OUT (1)

IN(1)

Test

Output Capacitance

Input Capacitance

Test Conditions

OUT

= 0 V

Max

Units

AC CHARACTERISTICS

= 2.7 V to 5.5 V and over the recommended temperature conditions, unless otherwise specified.

Memory Read & Write Cycle

(2)

Symbol

SCL

LOW

HIGH

R(1)

(1)

Parameter

Clock Frequency

Input Filter Spike Suppression (SDA, SCL)

Clock Low Period

Clock High Period

SDA and SCL Rise Time

SDA and SCL Fall Time

Start Condition Hold Time

Start Condition Setup Time (for a Repeated Start)

Data Input Hold Time

Data Input Setup Time

Stop Condition Setup Time

SCL Low to Data Out Valid

Data Out Hold Time

Time the Bus must be Free Before a New Transmission Can Start

Write Cycle Time (Byte or Page)

Min

Max

400

100

Units

kHz

µs

1.3

0.6

300

0.6

100

0.6

900

1.3

µs

HD; STA

SU; STA

HD; DAT

SU; DAT

SU; STO

BUF

(1)

WC(3)

Notes:

(1) This parameter is characterized initially and after a design or process change that affects the parameter. Not 100% tested.

(2) Test Conditions according to “AC Test Conditions” table.

(3) The write cycle time is the time from a valid stop condition of a write sequence to the end of the internal program/erase cycle. During the

write cycle, the bus interface circuits are disabled, SDA is allowed to remain high and the device does not respond to its slave address.

Characteristics subject to change without notice

Doc. No. MD-3008 Rev. R

参数对比

与CAT1025YI-25-G相近的元器件有：CAT1025YI-45-G、CAT1025ZD4I-25-T3、CAT1025YI-28-G、CAT1025YI-30-G、CAT1025YI-42-G、CAT1025ZD4I-28-T3、CAT1025ZD4I-45-T3、CAT1025ZD4I-30-T3、CAT1025ZD4I-42-T3。描述及对比如下：

型号	CAT1025YI-25-G	CAT1025YI-45-G	CAT1025ZD4I-25-T3	CAT1025YI-28-G	CAT1025YI-30-G	CAT1025YI-42-G	CAT1025ZD4I-28-T3	CAT1025ZD4I-45-T3	CAT1025ZD4I-30-T3	CAT1025ZD4I-42-T3
描述	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, ROHS COMPLIANT, MO-153, TSSOP-8, Power Management Circuit	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, ROHS COMPLIANT, MO-153, TSSOP-8	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, MO-229, TDFN-8	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, ROHS COMPLIANT, MO-153, TSSOP-8	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, ROHS COMPLIANT, MO-153, TSSOP-8	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, ROHS COMPLIANT, MO-153, TSSOP-8, Power Management Circuit	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, MO-229, TDFN-8	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, MO-229, TDFN-8	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, MO-229, TDFN-8	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, MO-229, TDFN-8
厂商名称	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)
零件包装代码	TSSOP	TSSOP	SON	TSSOP	TSSOP	TSSOP	SON	SON	SON	SON
包装说明	TSSOP,	TSSOP,	HVSON,	TSSOP,	TSSOP,	TSSOP,	HVSON,	HVSON,	HVSON,	HVSON,
针数	8	8	8	8	8	8	8	8	8	8
Reach Compliance Code	compliant	compliant	unknown	compliant	compliant	compliant	unknown	unknown	unknown	unknow
其他特性	RESET THRESHOLD VOLTAGE IS 2.625V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 4.375V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 2.625V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 2.925V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 3.075V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 4.375V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 2.925V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 4.625V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 3.075V; MANUAL RESET INPUT	RESET THRESHOLD VOLTAGE IS 4.375V; MANUAL RESET INPUT
可调阈值	NO	NO	NO	NO	NO	NO	NO	NO	NO	NO
模拟集成电路 - 其他类型	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码	R-PDSO-G8	R-PDSO-G8	S-PDSO-N8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	S-PDSO-N8	S-PDSO-N8	S-PDSO-N8	S-PDSO-N8
JESD-609代码	e4	e4	e3	e4	e4	e4	e3	e3	e3	e3
长度	4.4 mm	4.4 mm	3 mm	4.4 mm	4.4 mm	4.4 mm	3 mm	3 mm	3 mm	3 mm
信道数量	1	1	1	1	1	1	1	1	1	1
功能数量	1	1	1	1	1	1	1	1	1	1
端子数量	8	8	8	8	8	8	8	8	8	8
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	TSSOP	TSSOP	HVSON	TSSOP	TSSOP	TSSOP	HVSON	HVSON	HVSON	HVSON
封装形状	RECTANGULAR	RECTANGULAR	SQUARE	RECTANGULAR	RECTANGULAR	RECTANGULAR	SQUARE	SQUARE	SQUARE	SQUARE
封装形式	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.2 mm	1.2 mm	0.8 mm	1.2 mm	1.2 mm	1.2 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm
最大供电电压 (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
最小供电电压 (Vsup)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
标称供电电压 (Vsup)	3 V	5 V	3 V	3.3 V	3.3 V	5 V	3.3 V	5 V	3.3 V	5 V
表面贴装	YES	YES	YES	YES	YES	YES	YES	YES	YES	YES
技术	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子面层	NICKEL PALLADIUM GOLD	Nickel/Palladium/Gold (Ni/Pd/Au)	MATTE TIN	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN
端子形式	GULL WING	GULL WING	NO LEAD	GULL WING	GULL WING	GULL WING	NO LEAD	NO LEAD	NO LEAD	NO LEAD
端子节距	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
宽度	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm
Base Number Matches	1	1	1	1	1	1	1	-	-	-