GTL1655DGG Datasheet, PDF (7/23 Pages) NXP Semiconductors – 16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion

Philips Semiconductors
GTL1655
16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion
6.1 Function table
Table 5: Function table
See Table note [1].
Inputs
OEAB
LEAB
CP
H
X
X
L
H
X
L
H
X
L
L
↑
L
L
↑
L
L
H
L
L
L
Port A
X
L
H
L
H
X
X
Output
Port B
Z
L
H
L
H
B0^[2]
B0^[3]
Mode
isolation
transparent
transparent
registered
registered
previous state
previous state
Table 6: Output Enable function table
See Table note [1].
Inputs
OE
OEAB
OEBA
L
L
L
L
L
H
L
H
L
L
H
H
H
X
X
Outputs
Port A
active
Z
active
Z
Z
Port B
active
active
Z
Z
Z
Table 7: Port B edge-rate control (V_ERC) function table
See Table note [1].
Input V_ERC
Logic level
Nominal voltage
H
V_CC
L
GND
Output port B edge-rate
slow
fast
[1] A-to-B data flow is shown. B-to-A is similar, but uses OEBA, LEBA, and CP. It is not recommended to
set OEAB and OEBA LOW at the same time.
X — don’t care
H — HIGH voltage level
L — LOW voltage level
Z — high-impedance OFF-state
↑ — LOW-to-HIGH transition
[2] Output level before the indicated steady-state input conditions were established, provided that CP
was HIGH before LEAB went LOW.
[3] Output level before the indicated steady-state input conditions were established.
9397 750 12936
Product data
Rev. 01 — 11 May 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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