TheTTL - Al Kossow's Bitsavers

TBP38S22, TBP38S2X
2,048·BIT (256 WORDS BY 8 BITS)
STANDARD PROGRAMMABLE READ·ONLY MEMORY WITH 3·STATE OUTPUTS
recommended operating conditions
PARAMETER
COMMERCIAL
MIN NOM MAX
Vee Supply voltage 4.5 5 5.5 V
VIH High-level input voltage 2 V
VIL Low-level input voltage 0.8 V
10H High-level output current -3.2 mA
10L Low-level output current 24 mA
TA Operating free-air temperature range 0 70 °e
electrical characteristics over recommended operating free-air temperature range (unless otherwise
noted)
UNIT
COMMERCIAL
PARAMETER
TEST CONDITIONSt
MIN Typf MAX
VIK Vee = MIN, II = -18 mA
-1.2
VOH Vee = MIN, 10H = -3.2 mA 2.4 3.1
VOL Vee = MIN, 10L = 24 mA
0.5
10ZH Vee - MAX, Vo - 2.4 V
50
10ZL Vee = MAX, Vo = 0.5 V
- 50
II Vee - MAX, VI - 5.5 V
0.1
IIH Vee = MAX, VI = 2.7 V
20
IlL Vee = MAX, VI = 0.5 V
-0.25
lo§ Vee = MAX, Vo = 2.25 V -30 -112
lee
Vee = MAX
80 125
UNIT
V
V
V
JlA
JlA
mA
JlA
mA
mA
mA
tFor conditions shown as MIN or MAX, use appropriate value specified under recommended operating conditions.
t All typical values are at Vee = 5 V, T A = 25°e.
§The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, lOS.
switching characteristics over recommended ranges of TA and Vee (unless otherwise noted) 2:
o
a:
c..
TYPE
talA)
ten
tdis
TEST
ACCESS TIME
ENABLE TIME DISABLE TIME
CONDITIONS
FROM ADDRESS
UNIT
MIN Typf MAX MIN Typf MAX MIN Typf MAX
TBP38S22-18
eL = 50 pF,
14 18 9 13 5 10 ns
TBP38S2X-18 Rl = 300 n,
Commercial
TBP38S22-25
R2 = 600 n,
16 25 9 15 5 10 ns
TBP38S2X-25 See Note 2
tAli typical values are at Vee = 5 V, T A = 25°e.
NOTE 2: Load circuits and voltage waveforms are shown in Section 1 of The TTL Data Book, Volume 4, 1985.
t/)
PRODUCTION DATA documents contain information
current as of publication date. Products conform to
specifications per the terms of Texas Instruments
~~~~~:~~i~ai~:1~1.; ~!~~~~ti~r fllo::~:~:t:ros~s not
TEXAS -1!1
INSTRUMENTS
POST OFFICE BOX 225012 • DALLAS. TEXAS 75265
4-103