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P3C1024
HIGH SPEED 128K x 8
3.3V STATIC CMOS RAM
FEATURES
ADVANCE INFORMATION
3.3 Volts Power Supply
High Speed (Equal Access and Cycle Times)
— 15/17/20/25/35 ns (Commercial)
— 20/25/35/45 ns (Industrial)
Single 3.3 Volts ± 0.3 Volts Power Supply
Easy Memory Expansion Using
OEOE
OE Inputs
OEOE
CECE
CE
CECE
1, CE2
and
Common Data I/O
DESCRIPTION
The P3C1024 is a 1,048,576-bit high-speed CMOS
static RAM organized as 128Kx8. The CMOS memory
requires no clocks or refreshing, and has equal access
and cycle times. Inputs are fully TTL-compatible. The
RAM operates from a single 3.3V ± 0.3V tolerance power
supply .
Access times of 20 nanoseconds permit greatly enhanced system operating speeds. CMOS is utilized to
reduce power consumption to a low level. The P3C1024
is a member of a family of P ACE RAM™ products offering fast access times.
Three-State Outputs
Fully TTL Compatible Inputs and Outputs
Advanced CMOS Technology
Fast t
OE
Automatic Power Down
Packages
—32-Pin DIP and SOJ
The P3C1024 device provides asynchronous operations with matching access and cycle times. Memory
locations are specified on address pins A0 to A16. Reading is accomplished by device selection (CE1 low and
CE2 high) and output enabling (OE) while write enable
(WE) remains HIGH. By presenting the address under
these conditions, the data in the addressed memory
location is presented on the data input/output pins. The
input/output pins stay in the HIGH Z state when either
CE
or OE is HIGH or WE or CE2 is LOW.
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Package options for the P3C1024 include 32-pin 300
mil DIP and SOJ packages as well as 400 mil SOJ.
FUNCTIONAL BLOCK DIAGRAM
A
(9)
A
CE
CE
WE
OE
I/O
I/O
1
2
1
2
• • •
• • •
• • •
CONTROL
CIRCUIT
ROW SELECT
INPUT
DATA
CONTROL
262,144-
BIT
MEMORY
ARRAY
• • •
• • •
COLUMN
I/O
COLUMN
SELECT
• • •
• • •
(8)
A
A
• • •
• • •
1024.1
159
PIN CONFIGURATION
1
NC
2
A
16
A
3
14
A
4
12
A
5
7
A
6
6
A
7
5
A
8
4
A
9
3
A
10
2
A
11
1
A
12
0
I/O
13
0
14
I/O
1
I/O
15
2
GND
16 17
DIP , SOJ
TOP VIEW
Means Quality, Service and Speed
32
V
CC
31
A
15
30
CE
2
29
WE
28
A
13
27
A
8
26
A
9
25
A
11
24
OE
23
A
10
22
CE1
21
I/O
7
20
I/O
6
19
I/O
5
I/O
18
4
1024.2
I/O
3
1Q97
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