SAE81C91N Infineon Technologies, SAE81C91N Datasheet - Page 5

• Manufacturer Part Number: SAE81C91N
• Manufacturer: Infineon Technologies

Specifications of SAE81C91N

• Number Of Transceivers: 1
• Power Down Mode: Sleep
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Pin Definitions and Functions
Symbol
X1
X2
CLKOUT
RES
AD0/DI
AD1/DO
AD2/CLK
AD3/W
AD4/TIM
AD5
AD6
AD7
RD
WR
ALE
CS
INT
MS
P00 … P03,
P04 … P07
P10 … P13,
P14 … P17
TX0
TX1
RX0
RX1
V
Semiconductor Group
DDA
1)
1)
1)
Pin Number
PLCC-48 PLCC-28
11
10
14
19
42
43
44
1
2
3
4
5
35
36
34
27
41
26
28, 29,
30, 31,
37, 38,
39, 40
18, 17,
16, 15,
9, 8, 7, 6
25
24
23
22
20
07Feb95@09:05h Intermediate Version
28
27
3
4
19
20
21
22
23
24
25
26
16
17
15
12
18
11
–
–
–
–
10
9
8
7
5
Input (I)
Output (O)
O
I
O
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
I
O
I
I/O
I/O
I/O
I/O
O
O
I
I
I
4
Function
Crystal oscillator output.
Must be unconnected for external clock input.
Crystal oscillator input.
Used for external clock input.
Clock output
Reset. (Schmitt trigger characteristic)
PI: Address / Data bus / SI: Data input
PI: Address / Data bus / SI: Data output
PI: Address / Data bus / SI: Clock input
PI: Address / Data bus / SI: Write select
PI: Address / Data bus / SI:
PI: Address/Data bus
PI: Address/Data bus
PI: Address/Data bus
PI: Read / SI: no Function
PI: Write / SI: no Function
PI: Address Latch Enable / SI:no Function
Chip Select
Interrupt
Mode Select (PI
Port 0
These pins provide internal pullup resistors of
about 10...200 k .
Port 1
These pins provide internal pullup resistors of
about 10...200 k .
Transmitter output 0
Transmitter output 1
Comparator input 0 / Digital input
Comparator input 1
Analog power supply for comparator
(may be unconnected using the digital mode)
TIM = 0: Timing A; TIM = 1: Timing B
SI)
2)
SAE 81C90/91
2)