TXS02612 Datasheet, PDF (15/22 Pages) Texas Instruments – SDIO PORT EXPANDER WITH VOLTAGE-LEVEL TRANSLATION

TXS02612
www.ti.com ............................................................................................................................................................... SCES682A – MAY 2008 – REVISED JULY 2008
PARAMETER MEASUREMENT INFORMATION
V_CCI
V_CCO
V_CCI
V_CCO
DUT
IN OUT
15 pF
1 MΩ
DUT
IN
OUT
15 pF
1 MΩ
DATA RATE, PULSE DURATION, PROPAGATION DELAY, ENABLE/DISABLE
OUTPUT RISE AND FALL TIME MEASUREMENT USING
A PUSH-PULL DRIVER
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
AN OPEN-DRAIN DRIVER
Input
t_w
V_CCI/2
V_CCI/2
VOLTAGE WAVEFORMS
PULSE DURATION
V_CCI
0V
Input
V_CCO/2
t_PLH
Output
V_CCI /2
t_r
V_CCO/2
V_CCI
0V
Output
Control
(low-level
enabling)
0.8 x V_CCO
0.2 x V_CCO
t_PHL
V_OH
V_CCI /2
V_OL
t_f
t_PZL
Output
Waveform 1
CMD and DATA
(see Note B)
V_CCA/2
V_CCA/2
V_CCA
0V
0.2 x V_CCO
t_PLZ
V_CCO/2
V_CCO
V_OL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES:
A. C_L includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is lo, wexcept when disabled by the output control.
W aveform
C. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, Z _O = 50Ω, dv/dt≥ 1 V/ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. t_{P L Z} and t_{P HZ} are the same as _dt _is .
F. t_{P Z L} and t_{P Z H} are the same as _et _n.
G. t_{P L H} and t_{P HL} are the same as _pt _d.
H. V _CCI is the V _CC associated with the input port.
I. V _CCO is the V _CC associated with the output port.
J. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
Copyright © 2008, Texas Instruments Incorporated
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