sh66p31b SinoWealth Micro-Electronics Corp. Ltd, sh66p31b Datasheet - Page 21

• Manufacturer Part Number: sh66p31b
• Description: Otp 1k 4-bit Micro-controller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

LPD Circuitry Electrical Characteristics
AC Characteristics (V
Timing Waveform
(a) System Clock Timing Waveform:
(b) T0 Input Waveform:
Instruction Cycle Time
LPD-detected Voltage
LPD circuit current
T0 Input Width
High Pulse Width
Low Pulse Width
System Clock
System Clock
16/f
4/f
Parameter
OSC
Parameter
OSC
f
f
OSC
OSC
T1
T1
DD
T2
T2
= 3.0V, GND = 0V, T
T0 input signal
T3
T3
Symbol
Symbol
V
V
T4
T4
LPD25
I
t
t
LPD
t
t
IWH
IWL
LPD
CY
t
IW
CY
T5
T5
T6
(t
CY
T7
1/2t
1/2t
A
Min.
Min.
1.6
1.7
T12 T13 T14 T15 T16
+ 40)/N
= 25 ℃ , unless otherwise specified)
1
-
T8
IW
IW
T1
t
IPW(L)
Typ.
Typ.
T2
2.0
-
-
-
-
-
-
21
T3
t
t
T4
IW
CY
Max.
Max.
2.1
2.0
3.5
T17
10
-
-
-
T18
t
IPW(H)
T19
Unit
Unit
µA
µs
ns
ns
ns
V
V
T20
T
T
T
N = Prescaler divide ratio
T21
A
A
A
= -20 ℃ to +70 ℃
= 25 ℃
= -20 ℃ to +70 ℃
T22
Condition
Condition
T29
T30
SH66P31B
T31
T32