SLR2016, SLO2016, SLG2016, SLY2016, SCD5584A

2006-01-23

4

Timing Characteristics—Write Cycle Waveforms

Loading Data

The desired data code (D0–D6) and digit address (A0, A1) must

be held stable during the write cycle for storing new data.

Data entry may be asynchronous. Digit 0 is defined as right hand

digit with A1=A2=0.

Clearing the entire internal four-digit memory can be accomplished

by holding the clear (CLR) low for 1.0 msec minimum. The clear

function will clear the ASCII RAM. Loading an illegal data code will

display a blank.

Pin Function

Pin

Function

Pin

Function

1

WR Write

8

D3 Data

2

A1 Digit Select

9

D4 Data

3

A0 Digit Select

10

D5 Data

4

V

CC

11

D6 Data

5

D0 Data

12

BL Display Blank

6

D1 Data

13

CLR Clear

7

D2 Data

14

GND

Pin Function

Pin

Function

Pin

Function

DC Characteristics at 25°C

Parameters

Min.

Typ.

Max.

Units

Conditions

V

CC

4.5

5.0

5.5

V

—

—

2.3

3.0

mA

V

—

80

105

mA

V

—

—

0.8

V

4.5 V <V

2.0

—

—

V

4.5 V <V

25

—

100

µA

4.5 V <V

AC Characteristics (guaranteed minimum timing

parameters at V

Parameter

Symbol

–40°C

+25°C

+85°C

Unit

Address Set

Up Time

10

10

10

ns

Write Time

60

70

90

ns

Data Set Up

Time

20

30

50

ns

Address Hold

Time

20

30

40

ns

Data Hold

Time

20

30

40

ns

Access Time

(1)

90

110

140

ns

Clear Disable

Time

1.0

1.0

1.0

µs

Clear Time

1.0

1.0

1.0

ms

Note:

WR

CLR

A0 – A1

D0 – D6

2.0 V

0.8 V

2.0 V

0.8 V

2.0 V

0.8 V