UPD72042BGT NEC [NEC], UPD72042BGT Datasheet - Page 83

• Manufacturer Part Number: UPD72042BGT
• Description: LSI DEVICE FOR Inter Equipment Bus (IEBus) PROTOCOL CONTROL
• Manufacturer: NEC [NEC]

AC CHARACTERISTICS (T
SERIAL TRANSFER TIMING
SCK cycle time
SCK high-level width
SCK low-level width
SI (SIO)
SI (SIO)
SO (SIO)
CS, C/D setup time
CS, C/D hold time
IRQ output high-level width
RESET low-level width
System clock
Notes 1. For 3-wire serial I/O: SI
Note 1
Note 1
Note 2
2. For 3-wire serial I/O: SO
Parameter
For 2-wire serial I/O: SIO
For 2-wire serial I/O: SIO
setup time
hold time
output delay
SO (SIO)
SI (SIO)
A
CS, C/D
= –40 to +85 C, V
SCK
Note 1
Note 2
t
t
t
t
t
t
t
t
KCY
KH
KL
SIK
KSI
KSO
SA
HA
Symbol
Data Sheet S13990EJ3V0DS
f
f
X
X
Referred to SCK
Referred to SCK
Referred to SCK
Referred to SCK
Referred to SCK
t
SA
DD
= 6 MHz
= 6.29 MHz
= 5 V 10 %)
t
KSO
t
KL
Input data
t
SIK
Conditions
t
KCY
Output data
t
t
HA
KSI
t
KH
5.91
6.20
Min.
100
400
400
0.8
0.4
0.4
50
8
6
Typ.
6.00
6.29
PD72042B
6.09
6.38
Max.
300
11
MHz
MHz
Unit
ns
ns
ns
ns
ns
s
s
s
s
s
83