参数资料
型号: IDT71421SA55PF8
厂商: IDT, Integrated Device Technology Inc
文件页数: 13/17页
文件大小: 0K
描述: IC SRAM 16KBIT 55NS 64TQFP
标准包装: 750
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,异步
存储容量: 16K (2K x 8)
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: 64-LQFP
供应商设备封装: 64-TQFP(14x14)
包装: 带卷 (TR)
其它名称: 71421SA55PF8
IDT71321SA/LA and IDT71421SA/LA
High Speed 2K x 8 Dual-Port Static RAM with Interrupts
Industrial and Commercial Temperature Ranges
Timing Waveform of BUSY Arbitration Controlled by CE Timing (1)
ADDR "A"
AND "B"
CE "B"
CE "A"
t APS (2)
t BAC
ADDRESSES MATCH
t BDC
BUSY "A"
2691 drw 12
Timing Waveform of BUSY Arbritration Controlled
by Address Match Timing (1)
t RC or t WC
t APS
ADDR "A"
ADDR "B"
(2)
ADDRESSES MATCH
t BAA
ADDRESSES DO NOT MATCH
t BDA
BUSY "B"
2691 drw 13
NOTES:
1. All timing is the same for left and right ports. Port “A” may be either left or right port. Port “B” is the opposite from port “A”.
2. If t APS is not satisified, the BUSY will be asserted on one side or the other, but there is no guarantee on which side BUSY will be asserted (IDT71321 only).
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range (1)
71321X20
71421X20
Com'l Only
71321X25
71421X25
Com'l
& Ind
Symbol
Parameter
Min.
Max.
Min.
Max.
Unit
INTERRUPT TIMING
t AS
t WR
t INS
t INR
Address Set-up Time
Write Recovery Time
Interrupt Set Time
Interrupt Reset Time
0
0
____
____
____
____
20
20
0
0
____
____
____
____
25
25
ns
ns
ns
ns
NOTES:
1. 'X' in part numbers indicates power rating (SA or LA).
13
6.42
2691 tbl 11a
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