P3C1256
P3C1256
HIGH SPEED 32K x 8
3.3V STATIC CMOS RAM
FEATURES
3.3V Power Supply
High Speed (Equal Access and Cycle Times)
鈥?12/15/20/25 ns (Commercial)
鈥?15/20/25 ns (Industrial)
Low Power
鈥?360 mW Active
Single 3.3 Volts
鹵
0.3Volts Power Supply
Easy Memory Expansion Using
CE
and
OE
Inputs
Common Data I/O
Three-State Outputs
Fully TTL Compatible Inputs and Outputs
Advanced CMOS Technology
Automatic Power Down
Packages
鈥?8-Pin 300 mil DIP and SOJ
DESCRIPTION
The P3C1256 is a 262,144-bit high-speed CMOS
static RAM organized as 32Kx8. 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鹵 0.3V tolerance power
supply.
Access times as fast as 12 nanoseconds permit greatly
enhanced system operating speeds. CMOS is utilized
to reduce power consumption to a low level. The
P3C1256 is a member of a family of PACE RAM鈩?prod-
ucts offering fast access times.
The P3C1256 device provides asynchronous operation
with matching access and cycle times. Memory locations
are specified on address pins A
0
to A
14
. Reading is ac-
complished by device selection (CE and output enabling
(OE) while write enable (WE) remains HIGH. By present-
ing the address under these conditions, the data in the
addressed memory location is presented on the data in-
put/output pins. The input/output pins stay in the HIGH Z
state when either
CE
or
OE
is HIGH or
WE
is LOW.
Package options for the P3C1256 include 28-pin 300 mil
DIP and SOJ packages.
FUNCTIONAL BLOCK DIAGRAM
ROW SELECT
A
鈥⑩€?鈥?/div>
PIN CONFIGURATIONS
A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1519B
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
(8)
A
262,144-BIT
MEMORY
ARRAY
A1
A2
A3
A4
WE
A14
A13
A12
I/O
1
鈥⑩€⑩€?/div>
鈥⑩€⑩€?鈥⑩€⑩€?/div>
鈥⑩€⑩€?/div>
A5
INPUT
DATA
CONTROL
A
11
OE
A
10
CE
I/0
8
I/0
7
I/0
6
I/0
5
I/0
4
A6
A7
A8
A9
COLUMN I/O
鈥?鈥⑩€?/div>
鈥⑩€⑩€?/div>
I/O
2
I/0
1
COLUMN
SELECT
I/0
2
I/0
3
GND
A
WE
鈥⑩€⑩€?/div>
鈥⑩€⑩€?/div>
CE
OE
A
(7)
DIP (P5), SOJ (J5)
TOP VIEW
Means Quality, Service and Speed
1Q97
133
P3C1256-15JC相關(guān)型號(hào)PDF文件下載
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英文版
UV-Erasable/OTP PLD
ETC
-
英文版
UV-Erasable/OTP PLD
ETC
-
英文版
UV-Erasable/OTP PLD
ETC
-
英文版
UV-Erasable/OTP PLD
ETC
-
英文版
UV-Erasable/OTP PLD
ETC
-
英文版
UV-Erasable/OTP PLD
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
-
英文版
x8 SRAM
ETC
1
2
3
4
5
6
7
8
