P4C188/188L
P4C188/P4C188L
ULTRA HIGH SPEED 16K x 4
STATIC CMOS RAMS
FEATURES
Full CMOS, 6T Cell
High Speed (Equal Access and Cycle Times)
鈥?10/12/15/20/25 ns (Commercial)
鈥?12/15/20/25/35 (Industrial)
鈥?15/20/25/35/45 ns (Military)
Low Power (Commercial/Military)
鈥?715 mW Active 鈥?12/15
鈥?550/660 mW Active 鈥?20/25/35/45
鈥?193/220 mW Standby (TTL Input)
鈥?83/110 mW Standby (CMOS Input) P4C188
鈥?15 mW Standby (CMOS Input)
(P4C188L Military)
Single 5V
鹵
10% Power Supply
Data Retention with 2.0V Supply
(P4C188L Military)
Three-State Outputs
TTL/CMOS Compatible Outputs
Fully TTL Compatible Inputs
Standard Pinout (JEDEC Approved)
鈥?22-Pin 300 mil DIP
鈥?24-Pin 300 mil SOJ
鈥?22-Pin 290 x 490 mil LCC
DESCRIPTION
The P4C188 and P4C188L are 65,536-bit ultra high speed
static RAMs organized as 16K x 4. The CMOS memories
require no clocks or refreshing and have equal access and
cycle times. Inputs and outputs are fully TTL-compatible.
The RAMs operate from a single 5V鹵10% tolerance power
supply. With battery backup, data integrity is maintained for
supply voltages down to 2.0V. Current drain is typically 10
碌A
from a 2.0V supply.
Access times as fast as 12 nanoseconds are available,
permitting greatly enhanced system speeds. CMOS is
utilized to reduce power consumption to a low 715mW
active, 193mW standby and only 5mW in the P4C188L
version.
The P4C188 and P4C188L are available in 22-pin 300 mil
DIP, 24-pin 300 mil SOJ and 22-pin LCC packages provid-
ing excellent board level densities.
FUNCTIONAL BLOCK DIAGRAM
A
(8)
A
I/O
1
I/O
2
I/O
3
I/O
4
ROW
SELECT
65,536-BIT
MEMORY
ARRAY
PIN CONFIGURATIONS
V
CC
22
1
A
0
A
1
A
2
A
3
A
4
A
5
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
V
CC
A
13
A
12
A
11
A
10
A
9
I/O
4
I/O
3
I/O
2
I/O
1
WE
A
2
A
3
A
4
A
5
A
6
A
7
A
8
2
3
4
5
6
7
8
9
10
11 12
A
13
21
20
19
18
17
16
15
14
13
A
1
A
0
A
12
A
11
A
10
A
9
I/O
4
I/O
3
I/O
2
INPUT
DATA
CONTROL
COLUMN I/O
A
6
A
7
A
8
CE
GND
GND
WE
COLUMN
SELECT
CE
A
(6)
WE
A
DIP (P3, D3)
TOP VIEW
LCC (L3)
TOP VIEW
For SOJ pin configuration, please see Selection Guide Page.
Means Quality, Service and Speed
1Q97
63
I/O
1
CE
1
2
3
4
5
6
7
8
