TIL308, TIL309

NUMERIC DISPLAYS WITH LOGIC

SLBS002–D1096, MARCH 1972–REVISED SEPTEMBER 1992

POST OFFICE BOX 655303

4

FUNCTION TABLE

FUNCTION

LATCH INPUTS

BLANKING

LED

LATCH OUTPUTS

DISPLAY

FUNCTION

D

C

B

A

DP

STROBE

INPUT

TEST

QD QC QB QA

QDP

TIL308

TIL309

0

L

L

L

L

L

L

H

H

L

L

L

L

L

1

L

LL

H

H

L

H

H

L

LL

H

H

2

L

LHL

L

L

H

H

L

LHL

L

3

L

LH

H

H

L

H

H

L

LH

H

H

4

L

HL

L

L

L

H

H

L

HL

L

L

5

L

HL

H

H

L

H

H

L

HLH

H

6

L

HH

L

L

L

H

H

L

HH

L

L

7

L

HH

H

H

L

H

H

L

HHH

H

8

H

LL

L

L

L

H

H

H

LLL

L

9

H

LL

H

H

L

H

H

H

LL

H

H

A

H

LHL

L

L

H

H

H

LHL

L

Minus Sign

H

LH

H

H

L

H

H

H

LH

H

H

C

H

HL

L

L

L

H

H

H

HL

L

L

Blank

H

HL

H

H

L

H

H

H

HLH

H

E

H

HH

L

L

L

H

H

H

HH

L

L

F

H

HH

H

H

L

H

H

H

HHH

H

Blank

X

XX

X

X

X

L

H

X

XXX

X

LED TEST (LT)

X

X

X

X

X

X

X

L

X

X

X

X

X

H = high level, L = low level, X = irrelevant.

DP input has arbitrarily been shown activated (high) on every other line of the table.

absolute maximum ratings over operating case temperature range (unless otherwise noted)

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage (see Note 1)

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

– 25

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NOTES: 1. Voltage values are with respect to network ground terminal.

2. Case temperature is the surface temperature of the plastic measured directly over the integrated circuit. Forced-air cooling may be

required to maintain this temperature.

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage, VCC

4.75

5

5.25

V

Low logic level

QDP

1

Normalilzed fanout from each output, N

Low logic level

QA, QB, QC, QD

3

,

(to Series 54/74 integrated circuits)

High logic level

QDP

3

High logic level

QA, QB, QC, QD

6

Latch strobe pulse duration, tw

45

ns

Setup time, tsu

Latch data input (DP) before latch strobe (LS)

↑

60

ns

Hold time, th

Latch data input (DP) after latch strobe (LS)

↑

0

ns

Operating case temperature, TC

0

70

°C