参数资料
型号: IDT7143LA55J
厂商: IDT, Integrated Device Technology Inc
文件页数: 8/17页
文件大小: 0K
描述: IC SRAM 32KBIT 55NS 68PLCC
标准包装: 18
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,异步
存储容量: 32K(2K x 16)
速度: 55ns
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: 68-LCC(J 形引线)
供应商设备封装: 68-PLCC(24x24)
包装: 管件
其它名称: 7143LA55J
IDT7133SA/LA, IDT7143SA/LA
High-Speed 2K x 16 Dual-Port RAM
Military, Industrial and Commercial Temperature Ranges
TIMING WAVEFORM OF READ CYCLE NO. 1, EITHER SIDE (5)
t RC
ADDRESS
t AA
t OH
t OH
DATA OUT
BUSY OUT
PREVIOUS DATA VALID
DATA VALID
TIMING WAVEFORM OF READ CYCLE NO. 2, EITHER SIDE (5)
(4)
t ACE
CE
t BDD
(3,4)
2746 drw 07
t AOE
(4)
t HZ
(2)
OE
t LZ
(1)
t HZ (2)
DATA OUT
I CC
CURRENT
I SB
t PU
50%
t LZ
(1)
VALID DATA
t PD
50%
2746 drw 08
NOTES:
1. Timing depends on which signal is asserted last, OE or CE .
2. Timing depends on which signal is deasserted first, OE or CE .
3. t BDD delay is required only in a case where the opposite port is completing a write operation to the same address location. For simultaneous read operations, BUSY has no
relationship to valid output data.
4. Start of valid data depends on which timing becomes effective last, t AOE , t ACE , t AA, or t BDD .
5. R/ W = V IH , and the address is valid prior to or coincidental with CE transition LOW.
8
6.42
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