Toshiba TC9457F Computer Hardware User Manual


 
TC9457F
2002-10-21
12
I/O Ports
(P1-0 to P4-3)
Characteristics Symbol
Test
Circuit
Test Condition Min Typ. Max Unit
High level I
OH3
V
OH
= 4.5 V 1 2
I
OL3
V
OL
= 0.5 V
(exclude P4-1, 2, 3 pin)
1.5 3.0
Output current
Low level
I
OL5
V
OL
= 0.5 V (P4-1, 2, 3 pin) 4 10
mA
Input leakage current I
LI
V
IH
= 5.0 V, V
IL
= 0 V ±1.0 µA
High level V
IH
MV
DD
× 0.8
~ MV
DD
Input voltage
Low level V
IL
0 ~
MV
DD
× 0.2
V
Input pullup/down resistance R
IN1
(P1-0 to P1-3) When pulldown,
pullup are set.
25 50 120 k
HOLD
, INTR Input Port,
RESET
Input
Characteristics Symbol
Test
Circuit
Test Condition Min Typ. Max Unit
Input leakage current I
LI
V
IH
= 5.0 V, V
IL
= 0 V ±1.0 µA
High level V
IH3
MV
DD
× 0.8
~ MV
DD
Input voltage
Low level V
IL3
0 ~
MV
DD
× 0.2
V
A/D Converter
(AD
IN1
to AD
IN4
)
Characteristics Symbol
Test
Circuit
Test Condition Min Typ. Max Unit
Analog input voltage range V
AD
AD
IN
to AD
IN4
0 ~ MV
DD
V
Resolution V
RES
6 bit
Overall conversion error ±0.5 ±4.0 LSB
Analog input leakage I
LI
V
IH
= 5.0 V, V
IL
= 0 V
(AD
IN1
to AD
IN4
)
±1.0 µA
DATA, SFSY, LRCK, BCK, AOUT, MBOV, IPF Outputs and CLCK Input/Output
Characteristics Symbol
Test
Circuit
Test Condition Min Typ. Max Unit
High level I
OH4
V
OH
= 4.5 V
(Settings OT for output,
LEDon = 0)
2.0 4.0
Output current
Low level I
OL5
V
OL
= 0.5 V
(Settings OT for output,
LEDon = 0)
5 10
mA
Input leakage current I
LI
V
IH
= 5.0 V, V
IL
= 0 V
(CLCK)
±1.0 µA
High level V
IH
(CLCK)
MV
DD
× 0.8
~ MV
DD
Input voltage
Low level V
IL
(CLCK) 0 ~
MV
DD
× 0.2
V