TIL311

HEXADECIMAL DISPLAY WITH LOGIC

SODS001D – MARCH 1972 – REVISED DECEMBER 1997

3

POST OFFICE BOX 655303

POST OFFICE BOX 1443

functional block diagram

4-Bit

Latch

Decoder

Constant

Current

Driver

Latch

Data

Inputs

A

B

C

D

Left Decimal

Point Cathode

Right Decimal

Point Cathode

Latch Strobe

Input

Blanking

Input

Logic

Supply

LED

Supply

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

7 V

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

Supply voltage, LED (see Note 1)

7 V

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

Input voltage (pins 2, 3, 5, 8, 12, 13) (see Note 1)

5.5 V

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

Decimal point current

20 mA

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

Operating case temperature range (see Note 2)

0

°C to 85°C

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

Storage temperature range

– 25

°C to 85°C

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

NOTES:

1. Voltage values are with respect to common 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, logic

4.5

5

5.5

V

Supply voltage, VLED, LED

4

5

5.5

V

Decimal point current, IF(DP)

5

mA

Pulse duration, tw, latch strobe

40

ns

Setup time, tsu

50

ns

Hold time, th

40

ns