參數(shù)資料
型號: KM736V587
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 32Kx36-Bit Synchronous Burst SRAM(32Kx36位同步脈沖 靜態(tài) RAM)
中文描述: 32Kx36位同步突發(fā)靜態(tài)存儲器(32Kx36位同步脈沖靜態(tài)內存)
文件頁數(shù): 2/15頁
文件大?。?/td> 343K
代理商: KM736V587
PRELIMINARY
KM736V587
32Kx36 Synchronous SRAM
- 2 -
Rev 1.0
May 1997
WEc
WEd
FAST ACCESS TIMES
Parameter
Symbol
-8
-9
-10
Unit
Cycle Time
t
CYC
12
12
15
ns
Clock Access Time
t
CD
8.5
9
10
ns
Output Enable Access Time
t
OE
4
4
5
ns
32Kx36-Bit Synchronous Burst SRAM
FEATURES
Synchronous Operation.
On-Chip Address Counter.
Write Self-Timed Cycle.
On-Chip Address and Control Registers.
Single 3.3V
±
5% Power Supply.
5V Tolerant Inputs except I/O Pins.
Byte Writable Function.
Global Write Enable Controls a full bus-width write.
Power Down State via ZZ Signal.
Asynchronous Output Enable Control.
ADSP, ADSC, ADV Burst Control Pins.
LBO Pin allows a choice of either a interleaved burst or a
linear burst.
Three Chip Enables for simple depth expansion with No Data
Contention.
TTL-Level Three-State Output.
100-TQFP-1420A
The KM736V587 is 1,179,648 bits Synchronous Static Random
Access Memory designed to support zero wait state perfor-
mance for advanced Pentium/Power PC based system. And
with CS
1
high, ADSP is blocked to control signals.
It can be organized as 32K words of 36bits. And it integrates
address and control registers, a 2-bit burst address counter and
high output drive circuitry onto a single integrated circuit for
reduced components counts implementation of high perfor-
mance cache RAM applications.
Write cycles are internally self-timed and synchronous.
The self-timed write feature eliminates complex off chip write
pulse shaping logic, simplifying the cache design and further
reducing the component count.
Burst cycle can be initiated with either the address status pro-
cessor(ADSP) or address status cache controller(ADSC)
inputs. Subsequent burst addresses are generated internally in
the system
s burst sequence and are controlled by the burst
address advance(ADV) input.
ZZ pin controls Power Down State and reduces Stand-by cur-
rent regardless of CLK.
The KM736V587 is implemented with SAMSUNG
s high perfor-
mance CMOS technology and is available in a 100pin TQFP
package. Multiple power and ground pins are utilized to mini-
mize ground bounce.
GENERAL DESCRIPTION
LOGIC BLOCK DIAGRAM
CLK
LBO
ADV
ADSC
ADSP
CS
1
CS
2
CS
2
GW
BW
WEa
WEb
OE
ZZ
DQa
0
~ DQd
7
DQPa, DQPb
BURST CONTROL
LOGIC
BURST
ADDRESS
COUNTER
32Kx36
MEMORY
ARRAY
ADDRESS
REGISTER
CONTROL
LOGIC
OUTPUT
BUFFER
DATA-IN
REGISTER
C
R
C
R
A
0
~A
1
A
0
~A
1
A
2
~A
14
A
0
~A
14
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