P4C164/164L
P4C164/P4C164L
ULTRA HIGH SPEED 8K x 8
STATIC CMOS RAMS
FEATURES
Full CMOS, 6T Cell
Output Enable and Dual Chip Enable Control
Functions
High Speed (Equal Access and Cycle Times)
– 8/10/12/15/20/25 ns (Commercial)
– 10/12/15/20/25/35 (Industrial)
Single 5V±10% Power Supply
Data Retention with 2.0V Supply, 10 µA Typical
Current (P4C164L Military)
– 12/15/20/25/35/45 ns (Military)
Low Power Operation
– 770mW Active –15
Common Data I/O
– 660/743 mW Active – 20
Fully TTL Compatible Inputs and Outputs
– 495/575 mW Active – 25, 35, 45
– 193/220 mW Standby (TTL Input)
– 5.5mW Standby (CMOS Input) P4C164L (Military)
Standard Pinout (JEDEC Approved)
– 28-Pin 300 mil DIP, SOJ
– 28-Pin 600 mil Ceramic DIP
– 28-Pin 350 x 550 mil LCC
– 28-Pin CERPACK
DESCRIPTION
The P4C164 and P4C164L are 65,536-bit ultra high-speed
static RAMs organized as 8K x 8. The CMOS memories
require no clocks or refreshing and have equal access and
cycle times. Inputs are fully TTL-compatible. The RAMs
operate from a single 5V±10% tolerance power supply.
With battery backup, data integrity is maintained with
supply voltages down to 2.0V. Current drain is typically 10
µA from a 2.0V supply.
Access times as fast as 10 nanoseconds are available,
permitting greatly enhanced system operating speeds. In
full standby mode with CMOS inputs, power consumption
is only 5.5 mW for the P4C164L.
The P4C164 and P4C164L are available in 28-pin 300 mil
DIP and SOJ, 28-pin 600 mil ceramic DIP, and 28-pin 350
x 550 mil LCC packages providing excellent board level
densities.
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS
NC
V
CC
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A0
A
0
2
WE
CE
3
27
26
65,536-BIT
ROW
A
1
NC
4
5
6
7
8
9
CE
A
3
MEMORY
SELECT
ARRAY
2
2
28
2
A
2
A
3
4
1
25
24
23
22
21
20
19
18
A
A
A
12
12
A7
A
3
A
4
A
A
5
11
10
11
10
A
4
A
5
6
A
5
A
6
7
OE
I/O1
OE
A
6
8
A
9
A
7
A
9
INPUT
DATA
COLUMN I/O
A
7
9
A
8
10
11
12
CE
CE
1
1
CONTROL
A
8
10
11
12
13
14
I/O
I/O
I/O
I/O
I/O
8
8
7
I/O8
1
2
I/O
14 15 16
1
I/O
7
I/O
13
17
2
I/O
I/O
I/O
6
5
4
I/O
3
1519C
COLUMN
SELECT
GND
CE1
CE2
1519B
DIP (P5, D5-2, D5-1), SOJ (J5) 1519B
CERPACK (F4) SIMILAR
TOP VIEW
LCC (L5)
TOP VIEW
WE
• • • • • •
1519A
A8
A12
OE
Means Quality, Service and Speed
1Q97
91