IMP1834/A/D
Pin Configuration
DIP/SO/MicroSO
5V
1
2
8
7
3.3V
IN
IN
IMP1834
IMP1834A
IMP1834D
5VRESET*
3.3VRESET*
5VTOL
GND
3
4
6
5
3.3VTOL
PBRST
* IMP1834D reset outputs are
active HIGH (5VRESET and 3.3VRESET).
Outputs are open drain for IMP1834A.
1834_03.eps
Pin Descriptions
Pin Number
Name
Function
1
5VIN
5V power supply input.
5VRESET
5VRESET
5V reset output (Active LOW, IMP1834, IMP1834A. Open drain outputs for IMP1834A).
5V reset output (Active HIGH, IMP1834D).
2
3
4
5
5VTOL
GND
5V input tolerance select: 10% tolerance for 5VTOL 5VIN and 5% tolerance for 5VTOL = GND.
Ground.
PBRST
Debounced manual pushbutton reset input (40kΩ internal pull up).
3.3V input tolerance select: 20% tolerance for 3.3VTOL = 3.3VIN, and 10% tolerance for
3.3VTOL = GND.
6
3.3VTOL
3.3VRESET
3.3VRESET
3.3V reset output (Active LOW, IMP1834, IMP1834A. Open drain outputs for IMP1834A).
3.3V reset output (Active HIGH, IMP1834D).
7
8
3.3VIN
3.3V power supply input.
1834_01t.eps
Ordering Information
Operating
Temperature Range
Part Number
Package
Reset Polarity
Output Stage
IMP1834
IMP1834EMA
IMP1834S
8-DIP
MicroSO
8-SO
– 40°C to 85°C
– 40°C to 85°C
– 40°C to 85°C
25°C
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
HIGH
HIGH
HIGH
HIGH
Push-Pull
Push-Pull
Push-Pull
Push-Pull
Open Drain
Open Drain
Open Drain
Open Drain
Push-Pull
Push-Pull
Push-Pull
Push-Pull
IMP1834/D
DICE
IMP1834A
8-DIP
– 40°C to 85°C
– 40°C to 85°C
– 40°C to 85°C
25°C
IMP1834AEMA
IMP1834AS
IMP1834A/D
IMP1834D
MicroSO
8-SO
DICE
8-DIP
– 40°C to 85°C
– 40°C to 85°C
– 40°C to 85°C
25°C
IMP1834DEMA
IMP1834DS
IMP1834D/D
MicroSO
8-SO
DICE
1834_02t.eps
408-432-9100/www.impweb.com
© 1999 IMP, Inc.
2
A1PROS [ A1 PROS CO., LTD. ]
