HFC-S Cologne Chip AG, HFC-S Datasheet - Page 39

• Manufacturer Part Number: HFC-S
• Description: Isdn S/t HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

I/O Characteristics
March 1997
IOCHRDY
BD0-7
BUSDIR
TX2_HI
/TX1_LO
/TX_EN
/TX2_LO
TX1_HI
SRD0-7
SRA0-14
/SRCS
/SRWE
C4IO
F0IO
STIO1-2
F1_A-B
IRQA-F
IIOSEL0-3
SA0-9
/AEN
/IOR
/IOW
BD0-7
ALE
SRD0-7
C4IO
F0IO
STIO1-2
/IRQ_P
IRQ_P
/WD_RES
WD_RES
RESET
Output
Input
12mA
18mA
12mA
12mA
0.4V
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
6mA
6mA
6mA
6mA
6mA
TTL, internal pull-up resistor
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL, internal pull-up resistor
TTL, internal pull-up resistor
TTL, internal pull-up resistor
open drain, external pull up resistor required
open source, external pull down resistor
required
open drain, external pull up resistor required
open source, external pull down resistor
required
CMOS Schmitt Trigger
Driver Capability
Low
24mA
0.6V
Interface Level
V
CC
High
8mA
2mA
2mA
2mA
2mA
2mA
2mA
2mA
2mA
3mA
3mA
3mA
3mA
3mA
- 0.4V
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HFC-S