TheTTL - Al Kossow's Bitsavers

TBP28SA46
4096 BITS (512 WORDS BY 8 BITS)
STANDARD PROGRAMMABLE READ·ONLY MEMORIES WITH OPEN·COLLECTOR OUTPUTS
logic symbol
pin assignment
AO
Al
A2
A3
A4
AS
A6
A7
A8
04
G3
G2
01
(8)
(7)
(6)
(5)
(4)
(3)
(2)
(1)
(23)
(21) r-......
(19)
(18)
(20) ,........,
TBP28SA46
PROM 512 X 8
0
(9)
AO
(10)
AO
(11)
AO
0 (13)
>A511 AO
(14)
AO
(15)
AO
(16)
AQ
(17)
8 AO
&
EN
00
01
02
03
04
05
06
07
TBP28SA46
JW OR NW PACKAGE
(TOP VIEW)
A7
VCC
A6
AS
A5
NC
A4 (34
A3 (31
A2
G3
A1
G2
AO 07
00 06
01 05
02 04
GND 03
recommended operating conditions
Vee
VIH
VIL
VOH
IOL
TA
PARAMETER
Supply voltage
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output current
Operating free-air temperature range
MJW
JW OR NW
MIN NOM MAX MIN NOM MAX
UNIT
4.5 5 5.5 4.75 5 5.25 V
2 2 V
0.8 0.8 V
5.5 5.5 V
16 16 mA
-55 125 0 70 °e
"tJ
lJ
o
S
en
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
VIK
IOH
VOL
II
IIH
IlL
lee
Vee = MIN,
Vee = MIN,
Vee = MIN,
Vee = MAX,
Vee = MAX,
Vee = MAX,
TEST CONDITIONst
II = -18 mA
I
VOH = 2.4 V
VOH - 5.5 V
I
IOL = 16 mA
VI = 5.5 V
VI = 2.7 V
VI = 0.5 V
MIN
MJW
TYP+
Vee = MAX 100
JW OR NW
MAX MIN TYP+ MAX
UNIT
-1.2 -1.2 V
0.05 0.05
0.1 0.1
mA
0.5 0.5 V
1 1 mA
25 25 /lA
-0.25 -0.25 mA
135 100 135 mA
switching characteristics over recommended ranges of TA and Vee (unless otherwise noted)
PARAMETER
TEST MJW JW OR NW
CONDITIONS MIN TYP~ MAX MIN TYP~ MAX
talA) Access time from address eL = 30 pF 35 75 35 65
tatS) Access time from chip select (enable time) RLl = 300 {} 20 45 20 35
tpLH
Propagation delay time low-to-high-Ievel RL2 = 600 {}
output from chip select See Note 3
15 40 15 35
UNIT
ns
ns
ns
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 De.
NOTE 3: Load circuits and voltage waveforms are shown in Section 1.
4-18 TEXAS·.
INSTRUMENTS
POST OFFICE BOX 225012. DALLAS, TEXAS 75265