Dear customers,
About the change in the name such as "Oki Electric Industry Co. Ltd." and
"OKI" in documents to OKI Semiconductor Co., Ltd.
The semiconductor business of Oki Electric Industry Co., Ltd. was succeeded to OKI
Semiconductor Co., Ltd. on October 1, 2008.
Therefore, please accept that although
the terms and marks of "Oki Electric Industry Co., Ltd.", “Oki Electric”, and "OKI"
remain in the documents, they all have been changed to "OKI Semiconductor Co., Ltd.".
It is a change of the company name, the company trademark, and the logo, etc. , and
NOT a content change in documents.
October 1, 2008
OKI Semiconductor Co., Ltd.
550-1 Higashiasakawa-cho, Hachioji-shi, Tokyo 193-8550, Japan
http://www.okisemi.com/en/
E2O0012-27-X2
¡ Semiconductor
MSM82C84A-2RS/GS/JS
¡ Semiconductor
CLOCK GENERATOR AND DRIVER
This version: Jan. 1998
MSM82C84A-2RS/GS/JS
Previous version: Aug. 1996
GENERAL DESCRIPTION
The MSM82C84A-2RS/GS is a clock generator designed to generate MSM80C86A-10 and
MSM80C88A-10 system clocks of 8MHz.
Due to the use of silicon gate CMOS technology, standby current is only 40
mA
(MAX.), and the
power consumption is very low with 16 mA (MAX.) when a 8 MHz clock is generated.
FEATURES
• Operating frequency of 6 to 24 MHz (CLK output 2 to 8 MHz)
• 3
m
silicon gate CMOS technology for low power consumption
• Built-in crystal oscillator circuit
• 3 V to 6 V single power supply
• Built-in synchronized circuit for MSM80C86A-10 and MSM80C88A-10 READY and RESET
• TTL compatible
• Built-in Schmitt trigger circuit (RES input)
• 18-pin Plastic DIP (DIP18-P-300-2.54): (Product name: MSM82C84A-2RS)
• 20-pin Plastic QFJ (QFJ20-P-S350-1.27): (Product name: MSM82C84A-2JS)
• 24-pin Plastic SOP (SOP24-P-430-1.27-K): (Product name: MSM82C84A-2GS-K)
FUNCTIONAL BLOCK DIAGRAM
RES
x
1
x
2
F/C
EFI
CSYNC
RDY
1
AEN
1
AEN
2
RDY
2
ASYNC
C
≠
D
C
Q
RESET
OSC
Crystal
Oscillator
1
3
S
Y
N
C
1
2
S
Y
N
C
PCLK
CLK
C
Ø
D
(F1)
Q
D
(F2)
Q
READY
1/18
¡ Semiconductor
MSM82C84A-2RS/GS/JS
PIN CONFIGURATION (TOP VIEW)
18 pin Plastic DIP
CSYNC
PCLK
AEN
1
RDY
1
READY
RDY
2
AEN
2
CLK
GND
1
2
3
4
5
6
7
8
9
18 V
CC
17 X
1
16 X
2
15
ASYNC
14 EFI
13 F/C
12 OSC
11
RES
10 RESET
24 pin Plastic SOP
CSYNC
PCLK
NC
AEN
1
RDY
1
READY
NC
RDY2
AEN
2
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
Vcc
X
1
X
2
NC
ASYNC
EFI
NC
F/C
OSC
NC
RES
RESET
NC 10
CLK 11
GND 12
CSYNC
PCLK
AEN
1
20 V
CC
20 pin Plastic QFJ
RDY
1
4
READY 5
RDY
2
6
AEN
2
7
NC 8
18 X
2
17
ASYNC
16 EFI
15 F/C
14 NC
GND 10
RESET 11
RES
12
OSC 13
CLK
9
19 X
1
3
2
1
(NC not connected)
2/18
¡ Semiconductor
MSM82C84A-2RS/GS/JS
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Input Voltage
Output Voltage
Storage Temperature
Power Dissipation
Symbol
V
CC
V
IN
V
OUT
T
STG
P
D
Condition
Respect
to GND
—
Ta = 25°C
0.8
Rating
MSM82C84A-2RS/JS
MSM82C84A-2GS
Unit
V
V
V
°C
0.7
W
–0.5 to +7
–0.5 to V
CC
+0.5
–0.5 to V
CC
+0.5
–55 to +150
OPERATING RANGES
Parameter
Supply Voltage
Operating Temperature
Symbol
V
CC
T
op
Range
3 to 6
–40 to +85
Unit
V
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage
Operating Temperature
"L" Level Input Voltage
"H" Level Input Voltage (except
RES)
"H" Level Input Voltage (RES)
Symbol
V
CC
T
op
V
IL
V
IH
Min.
4.5
–40
–0.5
2.2
0.6*V
CC
Typ.
5
+25
—
—
Max.
5.5
+85
+0.8
V
CC
+0.5
Unit
V
°C
V
V
DC CHARACTERISTICS
(V
CC
= 5 V ± 10%, Ta = –40 to 85°C)
Parameter
"L" Level Output Voltage (CLK)
"L" Level Output Voltage (Others)
"H" Output Voltage (CLK)
"H" Output Voltage (Others)
RES
Input Hysteresis
Input Leak Current
(Except
ASYNC)
Input Current (ASYNC)
Standby Supply Current
Operating Supply Current
Input Capacitance
Symbol
V
OL
V
OL
V
OH
V
OH
V
IHR
-V
ILR
I
LI
I
LIA
I
CCS
I
CC
C
IN
0
£
V
IN
£
V
CC
0
£
V
IN
£
V
CC
Note 1
f = 24 MHz, C
L
= O
P
F
f =1 MHz
Condition
I
OL
= 4 mA
I
OL
= 2.5 mA
I
OH
= –4 mA
I
OH
= –1 mA
Min.
—
—
V
CC
–0.4
V
CC
–0.4
0.2*V
CC
–1
–100
—
—
—
Max.
0.4
0.4
—
—
—
+1
+10
40
16
7
Unit
V
V
V
V
V
mA
mA
mA
mA
pF
Note:
1. X1
≥
V
CC
– 0.2 V, X2
£
0.2 V
F/C
≥
V
CC
– 0.2 V, ASYNC = V
CC
or open
VIH
≥
V
CC
– 0.2 V, VIL
£
0.2 V
3/18
¡ Semiconductor
MSM82C84A-2RS/GS/JS
AC CHARACTERISTICS
(1)
Parameter
EFI "H" Pulse Width
EFI "L" Pulse Width
EFI Cycle Time
Crystal Oscillator Frequency
Set up Time of RDY
1
or RDY
2
to
CLK Falling Edge (Active)
Set up Time of RDY
1
or RDY
2
to
CLK Rising Edge (Active)
Set up Time of RDY
1
or RDY
2
to
CLK Falling Edge (Inactive)
Hold Time of RDY
1
or RDY
2
to
CLK Falling Edge
Set up Time of
ASYNC
to CLK
Falling Edge
Hold Time of
ASYNC
to
CLK Falling Edge
Set up Time of AEN
1
(AEN
2
) to
RDY
1
(RDY
2
) Rising Edge
Hold Time of AEN
1
(AEN
2
) to
CLK Falling Edge
Set up Time of CSYNC to EFI
Rising Edge
Hold Time of CSYNC to EFI
Rising Edge
CSYNC Pulse Width
Set up Time of
RES
to CLK Falling
Edge
Hold Time of
RES
to CLK Falling
Edge
Input Rising Edge Time
Input Falling Edge Time
Symbol
t
EHEL
t
ELEH
t
ELEL
—
t
R1VCL
t
R1VCH
t
R1VCL
t
CLR1X
t
AYVCL
t
CLAYX
t
A1R1V
t
CLA1X
t
YHEH
t
EHYL
t
YHYL
t
I1HCL
t
CLI1H
t
ILIH
t
IHIL
Min.
13
17
36
6
35
35
35
0
50
0
15
0
20
10
2
¥
t
ELEL
65
20
—
—
Max.
—
—
—
24
—
—
—
—
—
—
—
—
—
—
—
—
—
15
15
Unit
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(V
CC
= 5 V ± 10%, Ta = –40 to 85°C)
Conditions
90% to 90%
10% to 10%
—
—
ASYNC
= High
ASYNC
= Low
—
—
—
—
—
—
—
—
—
—
—
—
—
Output Load
Capacitance
CLK output
C
L
= 100 pF
Others 30 pF
Note: Parameters where timing has not been indicated in the above table are measured at
V
L
= 1.5 V and V
H
= 1.5 V for both inputs and outputs.
4/18
工业自动化与控制