SN74ALVCH32973 Datasheet, PDF (8/13 Pages) Texas Instruments – 16-BIT BUS TRANSCEIVER AND TRANSPARENT D-TYPE LATCH WITH EIGHT INDEPENDENT BUFFERS

SN74ALVCH32973
16-BIT BUS TRANSCEIVER AND TRANSPARENT D-TYPE LATCH
WITH EIGHT INDEPENDENT BUFFERS
SCES436C – APRIL 2003 – REVISED SEPTEMBER 2004
OPERATING CHARACTERISTICS⁽¹⁾
T_A = 25°C
PARAMETER
TEST
CONDITIONS
V_CC = 1.8 V
TYP
One f_A = 10 MHz,
A outputs enabled,
Q outputs disabled,
one A output switching
One f_B = 10 MHz,
TOE = GND,
LOE = V_CC,
DIR = GND,
12
C_L = 0 pF
One f_A = 10 MHz,
B outputs enabled,
Q outputs disabled,
one B output switching
One f_B = 10 MHz,
TOE = GND,
LOE = V_CC,
DIR = GND,
12
C_pd ⁽²⁾
Power dissipation
(each output) capacitance
C_L = 0 pF
One f_A = 10 MHz,
Q outputs enabled,
A and B I/Os isolated,
one Q output switching
One f_LE = 20 MHz,
One f_Q = 10 MHz,
TOE = V_CC,
LOE = GND,
11
C_L = 0 pF
One f_D = 10 MHz,
One Y output switching, One f_Y = 10 MHz,
A and B I/Os isolated, TOE = V_CC,
7
Q outputs disabled
LOE = V_CC,
C_L = 0 pF
One f_A = 10 MHz,
A and B I/Os isolated, One f_LE = 20 MHz,
C_pd
(Z)
Power dissipation Q outputs disabled,
f_Q not switching,
capacitance
one LE and one A data TOE = V_CC,
4
input switching
LOE = V_CC,
C_L = 0 pF
f_A not switching,
C_pd ⁽³⁾
(each LE)
Power dissipation
capacitance
A and B I/Os isolated,
Q outputs disabled,
one LE input switching
One f_LE = 20 MHz,
f_Q not switching,
TOE = V_CC,
LOE = V_CC,
6
C_L = 0 pF
V_CC = 2.5 V
TYP
14
14
13
8
5
7
www.ti.com
V_CC = 3.3 V
TYP
UNIT
19
21
pF
19
12
11
pF
9
pF
(1) Total device C_pd for multiple (m) outputs switching and (n) LE inputs switching = [m * C_pd (each output)] + [n * C_pd (each LE)]
(2) C_pd (each output) is the C_pd for each data bit (input and output circuitry) when it operates at 10 MHz (Note: The LE is operating at
20 MHz in this test, but its I_CC component has been subtracted).
(3) C_pd (each LE) is the C_pd for the clock circuitry only when it operates at 20 MHz.
8