参数资料
型号: SN74ABT8952DWRE4
厂商: Texas Instruments
文件页数: 14/31页
文件大小: 0K
描述: IC SCAN TESST DEVICE 28-SOIC
标准包装: 1,000
系列: 74ABT
逻辑类型: 扫描测试设备,带寄存总线收发器
电源电压: 4.5 V ~ 5.5 V
位数: 8
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 带卷 (TR)
SN54ABT8952, SN74ABT8952
SCAN TEST DEVICES WITH
OCTAL REGISTERED BUS TRANSCEIVERS
SCBS121D – AUGUST 1992 – REVISED JULY 1996
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
SN54ABT8952
SN74ABT8952
UNIT
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
CLKAB or CLKBA
0
100
0
100
MHz
tw
Pulse duration
CLKAB or CLKBA high or low
3
ns
t
Setup time
A before CLKAB
↑ or B before CLKBA↑
4.5
ns
tsu
Setup time
CLKEN before CLK
4.5
ns
th
Hold time
A after CLKAB
↑ or B after CLKBA↑
0
ns
th
Hold time
CLKEN after CLK
0
ns
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 13)
SN54ABT8952
SN74ABT8952
UNIT
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
TCK
0
50
0
50
MHz
tw
Pulse duration
TCK high or low
5
ns
A, B, CLK, CLKEN, or OE before TCK
5
tsu
Setup time
TDI before TCK
6
ns
TMS before TCK
6
A, B, CLK, CLKEN, or OE after TCK
0
th
Hold time
TDI after TCK
0
ns
TMS after TCK
0
td
Delay time
Power up to TCK
50*
50
ns
tr
Rise time
VCC power up
1*
1
s
*On products compliant to MIL-PRF-38535, this parameter is not production tested.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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