Datasheet
SN54LV163A, SN74LV163A
4-BIT SYNCHRONOUS BINARY COUNTERS
SCLS405F − APRIL 1998 − REVISED APRIL 2005
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54LV163A SN74LV163A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
f
C
L
= 15 pF 50* 115* 40* 40
MHz
f
max
C
L
= 50 pF 30 90 25 25
MHz
Q
8.5* 16.2* 1* 19.5* 1 19.5
t
CLK
RCO
(count mode)
C 15 pF
9.1* 17* 1* 20.5* 1 20.5
ns
t
pd
C
RCO
(preset mode)
C
L
= 15 pF
12.1* 20.6* 1* 24.5* 1 24.5
ns
ENT RCO
8.7* 15.7* 1* 19* 1 19
Q
11 19.2 1 22.5 1 22.5
t
CLK
RCO
(count mode)
C =50pF
11.9 20 1 23.5 1 23.5
ns
t
pd
C
RCO
(preset mode)
C
L
= 50 pF
14.6 23.6 1 27.5 1 27.5
ns
ENT RCO
11.7 18.7 1 22 1 22
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54LV163A SN74LV163A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
f
C
L
= 15 pF 80* 160* 70* 70
MHz
f
max
C
L
= 50 pF 55 125 50 50
MHz
Q
6.2* 12.8* 1* 15* 1 15
t
CLK
RCO
(count mode)
C 15 pF
6.8* 13.6* 1* 16* 1 16
ns
t
pd
C
RCO
(preset mode)
C
L
= 15 pF
8.8* 17.2* 1* 20* 1 20
ns
ENT RCO
6.5* 12.3* 1* 14.5* 1 14.5
Q
8 16.3 1 18.5 1 18.5
t
CLK
RCO
(count mode)
C =50pF
8.8 17.1 1 19.5 1 19.5
ns
t
pd
C
RCO
(preset mode)
C
L
= 50 pF
10.7 20.7 1 23.5 1 23.5
ns
ENT RCO
8.2 15.8 1 18 1 18
* 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.