P4C1024 Ver la hoja de datos (PDF) - Performance Semiconductor
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P4C1024 Datasheet PDF : 8 Pages
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P4C1024
HIGH SPEED 128K x 8
CMOS STATIC RAM
P4C1024
FEATURES
High Speed (Equal Access and Cycle Times)
— 15/17/20/25/35 ns (Commercial)
— 20/25/35/45 ns (Industrial)
Single 5 Volts ±10% Power Supply
Easy
Memory
Expansion
Using
CE
1,
CE2
and
OE Inputs
Common Data I/O
Three-State Outputs
Fully TTL Compatible Inputs and Outputs
Advanced CMOS Technology
Fast t
OE
Automatic Power Down
Packages
—32-Pin 300 mil DIP and SOJ
—32-Pin 400 mil SOJ
DESCRIPTION
The P4C1024 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 5V±10% tolerance power
supply.
Access times of 15 nanoseconds permit greatly en-
hanced system operating speeds. CMOS is utilized to
reduce power consumption to a low level. The P4C1024
is a member of a family of PACE RAM™ products offer-
ing fast access times.
The P4C1024 device provides asynchronous opera-
tions with matching access and cycle times. Memory
locations are specified on address pins A0 to A16. Read-
ing is accomplished by device selection (CE low and
1
CE high) and output enabling (OE) while write enable
2
(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
1
or
OE
is
HIGH
or
WE
or
CE2
is
LOW.
Package options for the P4C1024 include 32-pin 300
mil DIP and SOJ packages as well as 400 mil SOJ.
FUNCTIONAL BLOCK DIAGRAM
A
(9)
A
I/O1
I/O2
INPUT
DATA
CONTROL
262,144-
BIT
MEMORY
ARRAY
COLUMN
I/O
WE
CE1
CE2
OE
CONTROL
CIRCUIT
COLUMN
SELECT
••• •••
A
(8)
A
1024.1
PIN CONFIGURATION
NC 1
A16 2
A14 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O0 13
I/O1 14
I/O2 15
GND 16
32 VCC
31 A15
30 CE2
29 WE
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE1
21 I/O7
20 I/O6
19 I/O5
18 I/O4
17 I/O3
1024.2
DIP (P300), SOJ (J300, J400)
TOP VIEW
Means Quality, Service and Speed
1Q97
141
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