UPD30121 datasheet(37/76 Pages) NEC

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Data Sheet U14691EJ1V0DS00

µµµµPD30121

(4)

GPIO interface parameter (1/2)

Parameter

Symbol

Condition

MIN.

MAX.

Unit

tINP1

Note 1

91.5

µs

tINP2

Note 2

361.5

Input level width

tINP3

Note 3

180.6

tGPINR1

Note 4

200

GPIO input rise time

tGPINR2

Note 5

tGPINF1

Note 4

200

GPIO input fall time

tGPINF2

Note 5

Output level width

tOUTP

Note 6

Notes 1. Applied to GPIO (0:3) pins.

2. Applied to GPIO (9:14) and DCD#/GPIO15 pins.

3. Applied to SRAS#/GPIO4, SCAS#/GPIO5, SYSDIR/GPIO6, SPOWER/GPIO7, GPIO8, and DATA

(16:31)/GPIO (16:31) pins.

4. Applied to GPIO (0:3), SRAS#/GPIO4, SCAS#/GPIO5, SYSDIR/GPIO6, SPOWER/GPIO7, GPIO (8:14),

and DCD#/GPIO15 pins.

5. Applied to DATA (16:31)/GPIO (16:31) pins.

6. Applied to GPIO (0:3), SRAS#/GPIO4, SCAS#/GPIO5, SYSDIR/GPIO6, SPOWER/GPIO7, GPIO (8:14),

DATA (16:31)/GPIO (16:31), KSCAN (0:11)/GPIO (32:43), DDOUT/GPIO44, DDIN/GPIO45, DRTS#/

GPIO46, DCTS#/GPIO47, DBUS32/GPIO48, and SMODE1/GPIO49 pins.

Caution These

parameters

are

applied

when

the

SRAS#/GPIO4,

SCAS#/GPIO5,

SYSDIR/GPIO6,

SPOWER/GPIO7, DCD#/GPIO15, DATA (16:31)/GPIO (16:31), KSCAN (0:11)/GPIO (32:43), DDOUT/

GPIO44, DDIN/GPIO45, DRTS#/GPIO46, DCTS#/GPIO47, DBUS32/GPIO48, or SMODE1/GPIO49 pin

is used as the GPIO signal.

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