TLC548C_16 Datasheet, PDF (6/19 Pages) Texas Instruments – 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL

TLC548C, TLC548I, TLC549C, TLC549I
8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996
PARAMETER MEASUREMENT INFORMATION
1.4 V
VCC
3 kΩ
Output
Under Test
CL
(see Note A)
Test
Point
LOAD CIRCUIT FOR
td, tr, AND tf
Output
Under Test
CL
(see Note A)
Test
Point
3 kΩ
See Note B
LOAD CIRCUIT FOR
tPZH AND tPHZ
Output
Under Test
CL
(see Note A)
3 kΩ
Test
Point
See Note B
LOAD CIRCUIT FOR
tPZL AND tPLZ
CS
Output Waveform 1
(see Note C)
Output Waveform 2
(see Note C)
50%
50%
tPZL
tPLZ
tPZH
50%
tPHZ
10%
50%
See Note B
90%
VOLTAGE WAVEFORMS FOR ENABLE AND DISABLE TIMES
VCC
0V
VCC
0V
VOH
0V
I/O CLOCK
DATA OUT
0.8 V
td
Output
2.4 V
0.4 V
2.4 V
0.8 V
tr(bus)
tf(bus)
VOLTAGE WAVEFORMS FOR RISE AND FALL TIMES
VOLTAGE WAVEFORMS FOR DELAY TIME
NOTES: A. CL = 50 pF for TLC548 and 100 pF for TLC549; CL includes jig capacitance.
B. ten = tPZH or tPZL, tdis = tPHZ or tPLZ.
C. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
Figure 1. Load Circuits and Voltage Waveforms
6
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265