NTE3882 NTE ELECTRONICS, NTE3882 Datasheet - Page 3

• Manufacturer Part Number: NTE3882
• Description: IC COUNT TIMER CONTROL 1MHZ 5.25V 28-DIP
• Manufacturer: NTE ELECTRONICS

Specifications of NTE3882

• No. Of Timers: 1
• Clock External Input: Yes
• Supply Voltage Range: 4.75V To 5.25V
• Digital Ic Case Style: DIP
• No. Of Pins: 28
• Operating Temperature Range: 0°C To +70°C
• Frequency: 1MHz

AC Characteristics (Cont’d): (T
Note 3. Increase delay by 10ns for each 50pF increase in loading, 200pF maximum for data lines
Note 4. Increase delay by 10ns for each 10pF increase in loading, 100pF maximum.
Note 5. 2.5 TcC > (N–2) TdIEI(IEOF) + TdIM1(IEO) + TsIEI(IO).
Note 6. RESET must be active for a minimum of 3 clock cycles.
Clock
Clock
Data In to Clock
M1 to Clock
M1
IORQ
IEI
IEI
Clock
CLR/TRG
CLR/TRG
CLK Cycle Time
CLK/TRG Rise Time
CLK/TRG Fall Time
CLK/TRG Width (Low)
CLK/TRG Width (High)
CLK
TRG
Clock
Clock
Preceding M1)
Prescaler on Following Clock
to IEO
to IEO
to IEO
to Clock
to Clock
to Data Out Delay
to Data Out Float Delay
to INT
to ZC/TO
to ZC/TO
to Data Out Delay (INTA Cycle)
and 100pF for control lines.
to INT
to INT
Delay
Delay (After ED Decode)
Setup Time (INTA or M1 Cycle)
Delay (Interrupt Immediately
Delay
Setup Time for Immediate Count
Setup Time for Enabling of
Setup Time
Parameter
Delay
Delay
(TsCTR(C) Satisfied)
(TsCTR(C) Not Satisfied)
A
ZC/TO
ZC/TO
ZC/TO
= 0 to 70 C, V
IORQ
GND
IEO
Pin Connection Diagram
INT
M1
RD
IEI
D
D
D
D
0
1
2
4
5
6
7
10
11
12
13
14
1
2
3
4
5
6
7
8
9
TdC(ZCTOr)
TdCTK(INT) Counter Mode
TdIO(DOT)
TdIEI(IEOf)
TdIEI(IEOr)
TsCTR(Cc)
TdM1(IEO)
TsCTR(Ct)
TdC(DOz)
TdC(DO)
TdC(INT)
TwCTRH
TwCTRL
TsM1(C)
Symbol
TsDI(C)
TcCTR
TrCTR
TfCTR
CC
= 5V 5% unless otherwise specified)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Note 3
Note 4, Note 5
Note 3
Note 4
Note 4
Timer Mode
Counter Mode
Counter Mode
Timer Mode
Test Conditions
D
D
D
D
(+) 5V
CS
CS
System Clock Input
RESET
CE
CLK/TRG
CLK/TRG
CLK/TRG
CLK/TRG
3
2
1
0
1
0
0
1
2
3
2TcC
Min
210
200
200
300
210
260
190
60
–
–
–
–
–
–
–
–
–
–
–
Typ
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2TcC + 530
TcC + 230
TcT + 220
Max
240
230
300
340
190
220
50
50
–
–
–
–
–
–
–
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns