P3C1024 데이터 시트보기 (PDF) - Performance Semiconductor
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P3C1024 Datasheet PDF : 2 Pages
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P3C1024
HIGH SPEED 128K x 8
3.3V STATIC CMOS RAM
ADVANCE INFORMATION
FEATURES
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
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 DIP and SOJ
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 en-
hanced system operating speeds. CMOS is utilized to
reduce power consumption to a low level. The P3C1024
is a member of a family of PACE RAM™ products offer-
ing fast access times.
The P3C1024 device provides asynchronous opera-
tions with matching access and cycle times. Memory
locations are specified on address pins A to A . Read-
0
16
ing 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
1
or
OE
is
HIGH
or
WE
or
CE2
is
LOW.
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
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
DIP , SOJ
TOP VIEW
1024.2
Means Quality, Service and Speed
1Q97
159
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