74ABTH182652APMG4 Datasheet, PDF (33/39 Pages) Texas Instruments – SCAN TEST DEVICES WITH 18-BIT BUS TRANSCEIVERS AND REGISTERS

SN54ABTH18652A, SN54ABTH182652A, SN74ABTH18652A, SN74ABTH182652A
SCAN TEST DEVICES WITH
18ĆBIT BUS TRANSCEIVERS AND REGISTERS
SCBS167D − AUGUST 1993 − REVISED JULY 1996
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
TA = 25°C
SN54ABTH182652A SN74ABTH182652A
MIN TYP† MAX
MIN MAX
MIN MAX
Outputs high _{VCC = 5.5 V,}
1.8 2.2
2.2
2.2
ICC
Outputs low IO = 0,
Outputs
VI = VCC or
A or B ports
disabled
GND
22
27
1.1
2
27
2
27
2
∆ICC‡
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
1.5
1.5
1.5
Ci
Control
inputs
VI = 2.5 V or 0.5 V
5
Cio
A or B ports VO = 2.5 V or 0.5 V
10
Co
TDO
VO = 2.5 V or 0.5 V
8
† _{All typical values are at VCC = 5 V.}
‡ _{This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.}
UNIT
mA
mA
pF
pF
pF
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 15)12
fclock
tw
tsu
th
Clock frequency
Pulse duration
Setup time
Hold time
CLKAB or CLKBA
CLKAB or CLKBA high or low
A before CLKAB↑ or B before CLKBA↑
A after CLKAB↑ or B after CLKBA↑
SN54ABTH182652A
MIN MAX
0
100
3
3
0.5
SN74ABTH182652A
MIN MAX
0
100
3
3
0.5
UNIT
MHz
ns
ns
ns
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 15)
fclock
tw
Clock frequency
Pulse duration
tsu
Setup time
th
Hold time
td
Delay time
tr
Rise time
TCK
TCK high or low
A, B, CLK, OEAB, OEBA, or S before TCK↑
TDI before TCK↑
TMS before TCK↑
A, B, CLK, OEAB, OEBA, or S after TCK↑
TDI after TCK↑
TMS after TCK↑
Power up to TCK↑
VCC power up
SN54ABTH182652A
MIN MAX
0
50
8
6
4.5
3
1.5
1
1.5
50
1
SN74ABTH182652A
MIN MAX
0
50
8
6
4.5
3
1.5
1
1.5
50
1
UNIT
MHz
ns
ns
ns
ns
µs
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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