Note: 1. This LSI operates at a frequency of 7.2 MHz ±250 ppm.

2. See the parallel data timing.

3. See the parallel data timing.

Electrical Characteristics in the Allowable Operating Ranges

No. 4870-2/14

LC72700E, LC72700G

Parameter

Symbol

Conditions

min

typ

max

Unit

Supply voltage

4.5

5.0

5.5

V

MSK, DAT0 to 7, RE, PST, S/P, PORT0 to 2, RST,

V

Input high level voltage

TEST1, TEST2

CL, CE, DI

5.5

V

MSK, DAT0 to 7, RE, PST, S/P, PORT0 to 2, RST,

V

Input low level voltage

TEST1, TEST2

CL, CE, DI

V

Oscillator frequency

7.2

MHz

Input sensitivity

XIN, sine wave, capacitive coupling

400

1500

mVrms

Clock low level time

CL

0.7

µs

Clock high level time

CL

0.7

µs

Data setup time

CL, DI

0.7

µs

Data hold time

CL, DI

0.7

µs

CE wait time

CL, CE

0.7

µs

CE setup time

CL, CE

0.7

µs

CE hold time

CL, CE

0.7

µs

Data latch switching time

0.7

µs

Data output time

DO, CE

277

555

ns

RE wait time

RE

1

µs

RDY wait time

RE, RDY

0.5

0.8

µs

RDY output time

RDY

2.2

µs

PST input time

PST

0.3

µs

PST hold time

PST, DAT0 to 7, PORT0 to 2

10

ns

I/O direction switching time

0.5

0.8

µs

Parameter

Symbol

Conditions

min

typ

max

Unit

V

High level output voltage

V

V

V

FC-CK, INT-R, RDY, RDY0

Low level output voltage

1.0

V

0.4

V

0.4

V

1

µA

High level input current

1

µA

–1

µA

Low level input current

I

–100

µA

PORT0 to 2, S/P

–1

µA

Output off leakage current

5

µA

Hysteresis voltage

MSK, CL, CE, DI, RST

V

Built-in feedback resistance

Rf

XIN, XOUT

1.0

M

Ω

Pull-up resistance

Rpu

RE, PST, PORT0 to 2, S/P

50

k

Ω

Current drain

16

25

mA