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TheTTL - Al Kossow's Bitsavers

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TBP38R165, TBP38R16X<br />

16,384-BI1 (2048 WORDS BY 8 BITS) REGISTERED<br />

PROGRAMMABLE READ-ONLY MEMORIES<br />

logic symbol t<br />

II<br />

PROM 2048 X 8<br />

G (19) + 16 X 8<br />

EN<br />

ClK (18)<br />

C17<br />

AO (8)<br />

Z11/0<br />

A1 (7)<br />

Z12/1<br />

A2 (6) Z13/2<br />

A3 (5)<br />

A4 (4)<br />

A5 (3)<br />

A6 (2)<br />

A7 (1)<br />

A8 (23)<br />

A9 (22)<br />

A10 (21)<br />

Z14/3<br />

4<br />

0<br />

15A 2047<br />

2063<br />

}'6A~<br />

3<br />

A 170<br />

(9) 00<br />

(10) 01<br />

(11) 02<br />

(13) 03<br />

(14) 04<br />

(15) 05<br />

(16) 06<br />

(17) 07<br />

t This symbol is in accordance with ANSI/IEEE Std 91-1984 and<br />

lEG Publication 617-12.<br />

TERMINAL FUNCTIONS<br />

TERMINALS<br />

FUNCTION<br />

AO·A10 Address inputs for data from PROM array<br />

INIT If INIT is high, anyone of 2048 8-bit words can be addressed. If INIT is low, anyone of 16 8-bit initialization words<br />

can be addressed using AO thru A3.<br />

G<br />

If G is high, 00 thru 07 are in the high-impedance state. If G is low, 00 thru 07 are enabled.<br />

GlK low-to-high transition loads output register from PROM array.<br />

00-07 Register outputs under control of G<br />

4-84 TEXAS ..<br />

INSTRUMENTS<br />

POST OFFICE BOX 225012 • DALLAS, TEXAS 75265

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