参数资料
型号: IDT7008S35G
厂商: IDT, Integrated Device Technology Inc
文件页数: 5/19页
文件大小: 0K
描述: IC SRAM 512KBIT 35NS 84PGA
标准包装: 3
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,异步
存储容量: 512K (64K x 8)
速度: 35ns
接口: 并联
电源电压: 4.5 V ~ 5.5 V
工作温度: 0°C ~ 70°C
封装/外壳: 84-BPGA
供应商设备封装: 84-PGA(27.94x27.94)
包装: 托盘
其它名称: 7008S35G
IDT7008S/L
High-Speed 64K x 8 Dual-Port Static RAM
Truth Table I: Chip Enable (1)
Military, Industrial and Commercial Temperature Ranges
CE
L
H
CE 0
V IL
< 0.2V
V IH
X
>V CC -0.2V
X
CE 1
V IH
>V CC -0.2V
X
V IL
X
<0.2V
Port Selected (TTL Active)
Port Selected (CMOS Active)
Port Deselected (TTL Inactive)
Port Deselected (TTL Inactive)
Port Deselected (CMOS Inactive)
Port Deselected (CMOS Inactive)
Mode
3198 tbl 02
NOTES:
1. Chip Enable references are shown above with the actual CE 0 and CE 1 levels, CE is a reference only.
Truth Table II: Non-Contention Read/Write Control
Inputs (1)
Outputs
CE
(2)
H
L
L
X
R/ W
X
L
H
X
OE
X
X
L
H
SEM
H
H
H
X
I/O 0-7
High-Z
DATA IN
DATA OUT
High-Z
Deselected: Power-Down
Write to memory
Read memory
Outputs Disabled
Mode
NOTES:
1. A 0L – A 15L ≠ A 0R – A 15R.
2. Refer to Chip Enable Truth Table.
Truth Table III: Semaphore Read/Write Control (1)
3198 tbl 03
Inputs
Outputs
CE (2)
H
H
L
R/ W
H
X
OE
L
X
X
SEM
L
L
L
I/O 0-7
DATA OUT
DATA IN
______
Read Semaphore Flag Data Out
Write I/O 0 into Semaphore Flag
Not Allowed
Mode
NOTES:
1. There are eight semaphore flags written to via I/O 0 and read from all the I/Os (I/O 0 -I/O 7 ). These eight semaphore flags are addressed by A 0 -A 2 .
2. Refer to Chip Enable Truth Table.
5
6.42
3198 tbl 04
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