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Preliminary Information

CAT24FC32A

32K-Bit Fast Mode I

C Serial CMOS EEPROM

FEATURES

Fast mode I

C bus compatible*

Max clock frequency:

Output slope control to eliminate ground

bounce

Zero standby current

Commercial, industrial and automotive

400 kHz for V

=1.8V to 3.6V

Hardware write protect for entire array

Cascadable for up to eight devices

32-Byte page or byte write modes

Self-timed write cycle with autoclear

5 ms max write cycle time

Random and sequential read modes

Schmitt trigger and spike suppression at SDA

temperature ranges

1,000,000 program/erase cycles

100 years data retention

8-pin PDIP, 8-pin SOIC (150 and 200 mil) and

8-pin TSSOP packages

and SCL inputs

DESCRIPTION

The CAT24FC32A is a 32K-bit Serial CMOS EEPROM

internally organized as 4Kx8 bits. The device is

compatible with Fast-mode I

C bus specification and

operates down to 1.8V with a bit rate up to 400 kbit/s.

Extended addressing capability allows up to 8 devices

to share the same bus. Catalyst's advanced CMOS

technology substantially reduces device power

requirements. The device is optimized for high

performance applications, where low power, low voltage

and high speed operation are required.

CAT24FC32A is available in 8-pin DIP, 8-pin SOIC

(JEDEC and EIAJ) and 8-pin TSSOP packages.

PIN CONFIGURATION

DIP Package (P, L)

VSS

VCC

SCL

SDA

BLOCK DIAGRAM

EXTERNAL LOAD

DOUT

SENSE AMPS

SHIFT REGISTERS

TSSOP Package (U, Y)

VSS

VCC

SCL

SDA

VCC

VSS

ACK

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

256

SDA

START/STOP

LOGIC

SOIC Package (J,W) (K, X)

VSS

VCC

SCL

SDA

CONTROL

LOGIC

XDEC

128

EEPROM

128 X 256

DATA IN STORAGE

HIGH VOLTAGE/

TIMING CONTROL

SCL

STATE COUNTERS

SLAVE

ADDRESS

COMPARATORS

* Catalyst Semiconductor is licensed by Philips Corporation to carry the I

C Bus Protocol.

Characteristics subject to change without notice

Doc. No. 1048, Rev. B

CAT24FC32A

Preliminary Information

PIN FUNCTIONS

Pin Name

A0, A1, A2

SDA

SCL

Function

Device Address Inputs

Serial Data/Address

Serial Clock

Write Protect

Power Supply

Ground

ABSOLUTE MAXIMUM RATINGS*

Temperature Under Bias ................. –55°C to +125°C

Storage Temperature ....................... –65°C to +150°C

Voltage on Any Pin with

Respect to Ground

(1)

........... –2.0V to +V

+ 2.0V

with Respect to Ground ............... –2.0V to +7.0V

Package Power Dissipation

Capability (T

= 25°C) ................................... 1.0W

Lead Soldering Temperature (10 secs) ............ 300°C

Output Short Circuit Current

(2)

........................ 100mA

RELIABILITY CHARACTERISTICS

Symbol

END(3)

DR(3)

ZAP(3)

LTH(3)(4)

Parameter

Endurance

Data Retention

ESD Susceptibility

Latch-up

Min.

1,000,000

100

2000

100

Max.

*COMMENT

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.

Units

Cycles/Byte

Years

Volts

Reference Test Method

MIL-STD-883, Test Method 1033

MIL-STD-883, Test Method 1008

MIL-STD-883, Test Method 3015

JEDEC Standard 17

RECOMMENDED OPERATING CONDITIONS

Temperature Range

Commercial

Industrial

Minimum

0˚C

-40˚C

Maximum

+70˚C

+85˚C

Supply Voltage Range

1.8V to 3.6V

Device

CAT24FC32A

Note:

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

voltage on output pins is V

+0.5V, which may overshoot to V

+ 2.0V for periods of less than 20ns.

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

(3) This parameter is tested initially and after a design or process change that affects the parameter.

(4) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to V

+1V.

Doc. No. 1048, Rev. B

Preliminary Information

D.C. OPERATING CHARACTERISTICS

Over recommended operating conditions, unless otherwise specified

Symbol

CC1

CC2

SB(1)

IL(2)

IH(2)

OL1

OL2

Parameter

Input Leakage Current

(4)

Output Leakage Current

(4)

Power Supply Current

(Operating Write)

Power Supply Current

(Operating Read)

Standby Current

Input Low Voltage

Input High Voltage

Output Low Voltage

-0.5

0.7V

0.3V

+ 0.5

0.4

0.2V

µA

400

µA

Min.

-10

Typ.

Max.

Units

µA

CAT24FC32A

Test Conditions

= GND to V

SCL

= 400kHz

= 3.6V

SCL

= 400kHz

= 3.6V

= GND or V

2.5V

≤

3.6V

= 3.0 mA

1.8V

≤

< 2.5V

= 3 mA

CAPACITANCE

= 25°C, f = 1.0 MHz, V

= 3.6V

Symbol

I/O(3)

IN(3)

Test

Input/Output Capacitance (SDA)

Input Capacitance (A0, A1, A2, SCL, WP)

Max.

Units

Conditions

I/O

= 0V

Note:

(1) Standby current, I

< 900 nA; A0, A1, A2, WP connected to GND; SCL, SDA = GND or VCC.

(2) V

min and V

max are reference values only and are not tested.

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

(4) I/O pins, SDA and SCL do not obstruct the bus lines if V

is switched off.

Doc. No. 1048, Rev. B

CAT24FC32A

Preliminary Information

A.C. CHARACTERISTICS

Over recommended operating conditions, unless otherwise specified (Note 1).

VCC=1.8V - 3.6V

Symbol

SCL

LOW

HIGH

R(2)

F(2)

HD:STA

SU:STA

HD:DAT

SU:DAT

SU:STO

SU:WP

HD:WP

BUF(2)

OF(2)

WC(3)

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 In Setup Time

Stop Condition Setup Time

WP Setup Time

WP Hold Time

SCL Low to Data Out Valid

Data Out Hold Time

Time the Bus must be Free Before a New

Transmission Can Start

Output Fall Time from V

min to V

max

Write Cycle Time (Byte or Page)

1.3

250

1.3

0.6

100

0.6

2.5

900

300

Min

Typ

Max

400

Units

kHz

µs

Power-Up Timing

(2)(4)

Symbol

PUR

PUW

Parameter

Power-Up to Read Operation

Power-Up to Write Operation

Min

Typ

Max

Units

Note:

(1) Test Conditions according to "AC Test Conditions" Table.

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

(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.

(4) t

PUR

and t

PUW

are the delays required from the time V

is stable until the specified operation can be initiated.

Doc. No. 1048, Rev. B

Preliminary Information

AC TEST CONDITIONS

Input pulse voltages

Input rise and fall times

Input reference voltages

Output reference voltages

Output load

0.2V

to 0.8V

≤

50 ns

0.3V

, 0.7V

0.5V

Current source: I

= 3mA;

CAT24FC32A

CL: 400pF for f

SCl

max = 400kHz / 100pF for f

SCL

max = 1 MHz

Figure 1. Bus Timing

tLOW

SCL

tSU:STA

tHD:STA

tHD:DAT

tSU:DAT

tSU:STO

tHIGH

tLOW

SDA IN

tAA

SDA OUT

tDH

tBUF

Figure 2. WP Timing

2nd Byte Address

SCL

tSU:WP

Data

SDA

tHD:WP

Figure 3. Write Cycle Timing

SCL

SDA

8TH BIT

BYTE n

ACK

tWR

STOP

CONDITION

START

CONDITION

ADDRESS

Doc. No. 1048, Rev. B

参数对比

与CAT24FC32AX-TE13相近的元器件有：CAT24FC32AY-TE13、CAT24FC32AU-TE13、CAT24FC32AJ-TE13、CAT24FC32AP、CAT24FC32AW-TE13、CAT24FC32AL、CAT24FC32AK-TE13。描述及对比如下：

型号	CAT24FC32AX-TE13	CAT24FC32AY-TE13	CAT24FC32AU-TE13	CAT24FC32AJ-TE13	CAT24FC32AP	CAT24FC32AW-TE13	CAT24FC32AL	CAT24FC32AK-TE13
描述	EEPROM, 4KX8, Serial, CMOS, PDSO8, LEAD FREE, SOIC-8	EEPROM, 4KX8, Serial, CMOS, PDSO8, LEAD FREE, TSSOP-8	EEPROM, 4KX8, Serial, CMOS, PDSO8, TSSOP-8	EEPROM, 4KX8, Serial, CMOS, PDSO8, SOIC-8	EEPROM, 4KX8, Serial, CMOS, PDIP8, PLASTIC, DIP-8	EEPROM, 4KX8, Serial, CMOS, PDSO8, LEAD FREE, SOIC-8	EEPROM, 4KX8, Serial, CMOS, PDIP8, LEAD FREE, PLASTIC, DIP-8	EEPROM, 4KX8, Serial, CMOS, PDSO8, SOIC-8
是否Rohs认证	符合	符合	不符合	不符合	不符合	符合	符合	不符合
零件包装代码	SOIC	SOIC	SOIC	SOIC	DIP	SOIC	DIP	SOIC
包装说明	SOP, SOP8,.3	TSSOP, TSSOP8,.25	TSSOP, TSSOP8,.25	SOP, SOP8,.25	DIP, DIP8,.3	SOP, SOP8,.25	DIP, DIP8,.3	SOP, SOP8,.3
针数	8	8	8	8	8	8	8	8
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
ECCN代码	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
最大时钟频率 (fCLK)	0.4 MHz	0.4 MHz	0.4 MHz	0.4 MHz	0.4 MHz	0.4 MHz	0.4 MHz	0.4 MHz
数据保留时间-最小值	100	100	100	100	100	100	100	100
耐久性	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles
I2C控制字节	1010DDDR	1010DDDR	1010DDDR	1010DDDR	1010DDDR	1010DDDR	1010DDDR	1010DDDR
JESD-30 代码	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDIP-T8	R-PDSO-G8	R-PDIP-T8	R-PDSO-G8
JESD-609代码	e3	e3	e0	e0	e0	e3	e3	e0
长度	4.9 mm	4.4 mm	4.4 mm	4.9 mm	9.59 mm	4.9 mm	9.59 mm	4.9 mm
内存密度	32768 bit	32768 bit	32768 bit	32768 bit	32768 bit	32768 bit	32768 bit	32768 bit
内存集成电路类型	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM
内存宽度	8	8	8	8	8	8	8	8
功能数量	1	1	1	1	1	1	1	1
端子数量	8	8	8	8	8	8	8	8
字数	4096 words	4096 words	4096 words	4096 words	4096 words	4096 words	4096 words	4096 words
字数代码	4000	4000	4000	4000	4000	4000	4000	4000
工作模式	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
最高工作温度	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C
组织	4KX8	4KX8	4KX8	4KX8	4KX8	4KX8	4KX8	4KX8
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	SOP	TSSOP	TSSOP	SOP	DIP	SOP	DIP	SOP
封装等效代码	SOP8,.3	TSSOP8,.25	TSSOP8,.25	SOP8,.25	DIP8,.3	SOP8,.25	DIP8,.3	SOP8,.3
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	IN-LINE	SMALL OUTLINE	IN-LINE	SMALL OUTLINE
并行/串行	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL
峰值回流温度（摄氏度）	260	260	240	240	240	260	260	240
电源	2/3.3 V	2/3.3 V	2/3.3 V	2/3.3 V	2/3.3 V	2/3.3 V	2/3.3 V	2/3.3 V
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.75 mm	1.1 mm	1.1 mm	1.75 mm	4.57 mm	1.75 mm	4.57 mm	1.75 mm
串行总线类型	I2C	I2C	I2C	I2C	I2C	I2C	I2C	I2C
最大待机电流	9e-7 A	9e-7 A	9e-7 A	9e-7 A	9e-7 A	9e-7 A	9e-7 A	9e-7 A
最大压摆率	0.003 mA	0.003 mA	0.003 mA	0.003 mA	0.003 mA	0.003 mA	0.003 mA	0.003 mA
最大供电电压 (Vsup)	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
最小供电电压 (Vsup)	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V
标称供电电压 (Vsup)	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V
表面贴装	YES	YES	YES	YES	NO	YES	NO	YES
技术	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
端子面层	MATTE TIN	MATTE TIN	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	MATTE TIN	MATTE TIN	Tin/Lead (Sn/Pb)
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE	GULL WING	THROUGH-HOLE	GULL WING
端子节距	1.27 mm	0.65 mm	0.65 mm	1.27 mm	2.54 mm	1.27 mm	2.54 mm	1.27 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
处于峰值回流温度下的最长时间	40	NOT SPECIFIED	NOT SPECIFIED	30	30	40	40	30
宽度	3.9 mm	3 mm	3 mm	3.9 mm	7.62 mm	3.9 mm	7.62 mm	3.9 mm
最长写入周期时间 (tWC)	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms
写保护	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE
厂商名称	Catalyst	-	Catalyst	-	-	Catalyst	Catalyst	Catalyst