参数资料
型号: IDT7143LA25PF8
厂商: IDT, Integrated Device Technology Inc
文件页数: 9/17页
文件大小: 0K
描述: IC SRAM 32KBIT 25NS 100TQFP
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: 32K(2K x 16)
速度: 25ns
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: 100-LQFP
供应商设备封装: 100-TQFP(14x14)
包装: 带卷 (TR)
其它名称: 7143LA25PF8
IDT7133SA/LA, IDT7143SA/LA
High-Speed 2K x 16 Dual-Port RAM
Military, Industrial and Commercial Temperature Ranges
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage (5)
7133X20
7143X20
Com'l Only
7133X25
7143X25
Com'l & Ind
7133X35
7143X35
Com'l
& Military
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
WRITE CYCLE
t WC
t EW
t AW
t AS
t WP
t WR
t DW
Write Cycle Time (3)
Chip Enable to End-of-Write
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Data Valid to End-of-Write
20
15
15
0
15
0
15
____
____
____
____
____
____
____
25
20
20
0
20
0
15
____
____
____
____
____
____
____
35
25
25
0
25
0
20
____
____
____
____
____
____
____
ns
ns
ns
ns
ns
ns
ns
t HZ
Output High-Z Time
(1,2)
____
12
____
15
____
20
ns
t DH
Data Hold Time
(4)
0
____
0
____
0
____
ns
Write Enable to Output in High-Z
t WZ
(1,2)
____
12
____
15
____
20
ns
t OW
Output Active from End-of-Write
(1,2,4)
0
____
0
____
0
____
ns
2746 tbl 11a
7133X45
7143X45
Com'l Only
7133X55
7143X55
Com'l, Ind
& Military
7133X70/90
7143X70/90
Com'l &
Military
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
WRITE CYCLE
t WC
t EW
t AW
t AS
t WP
t WR
t DW
Write Cycle Time (3)
Chip Enable to End-of-Write
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Data Valid to End-of-Write
45
30
30
0
30
0
20
____
____
____
____
____
____
____
55
40
40
0
40
0
25
____
____
____
____
____
____
____
70/90
50/50
50/50
0/0
50/50
0/0
30/30
____
____
____
____
____
____
____
ns
ns
ns
ns
ns
ns
ns
t HZ
Output High-Z Time
(1,2)
____
20
____
20
____
25/25
ns
t DH
Data Hold Time
(4)
5
____
5
____
5/5
____
ns
Write Enable to Output in High-Z
t WZ
t OW
(1,2)
Output Active from End-of-Write (1,2,4)
____
5
20
____
____
5
20
____
____
5/5
25/25
____
ns
ns
NOTES:
2746 tbl 11b
1. Transition is measured 0mV from Low or High-impedance voltage from the Output Test Load (Figure 2).
2. This parameter is guaranteed by device characterization but not production tested.
3. For MASTER/SLAVE combination, t WC = t BAA + t WR + t WP , since R/ W = V IL must occur after t BAA.
4. The specification for t DH must be met by the device supplying write data to the RAM under all operation conditions. Although t DH and t OW values will vary over voltage
and temperature, the actual t DH will always be smaller than the actual t OW .
5. 'X' in part number indicates power rating (SA or LA).
9
6.42
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