74hct193 NXP Semiconductors, 74hct193 Datasheet - Page 21

• Manufacturer Part Number: 74hct193
• Description: Presettable Synchronous 4-bit Binary Up/down Counter
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 10.
Table 11.
74HC_HCT193_3
Product data sheet
Type
74HC193
74HCT193
Type
74HC193
74HCT193
Fig 16. Load circuitry for measuring switching times
Test data is given in
Definitions test circuit:
R
C
R
S1 = Test selection switch
T
L
L
Measurement points
Test data
= Load capacitance including jig and probe capacitance
= Load resistor
= Termination resistance should be equal to output impedance Z
Input
V
V
3 V
I
CC
Table
Input
V
0.5
1.3 V
M
GENERATOR
11.
PULSE
V
negative
positive
CC
pulse
pulse
0 V
0 V
V
V
I
I
t
6 ns
6 ns
r
, t
90 %
10 %
f
V I
t
t
Rev. 03 — 23 May 2007
r
f
V
V
M
M
R T
10 %
90 %
V
GND to V
GND to 3 V
I
Presettable synchronous 4-bit binary up/down counter
DUT
V
CC
Load
C
15 pF, 50 pF
15 pF, 50 pF
L
t
t
W
W
CC
V O
o
of the pulse generator
V
V
74HC193; 74HCT193
M
M
C L
t
t
r
f
R L
R
1 k
1 k
S1
L
001aad983
V
CC
open
Output
V
0.5
1.3 V
M
V
CC
© NXP B.V. 2007. All rights reserved.
S1 position
t
open
open
PHL
, t
PLH
21 of 29