83C196EA Intel Corporation, 83C196EA Datasheet - Page 10

• Manufacturer Part Number: 83C196EA
• Description: CHMOS 16-BIT MICROCONTROLLER
• Manufacturer: Intel Corporation

83C196EA CHMOS 16-BIT MICROCONTROLLER — AUTOMOTIVE
6
4.0 SIGNALS
ANGND
V
V
V
NC
†
††
†††
A15:0
A20:16
ACH15:0
CC
SS
REF
†††
This pin supplies voltage to the phase-locked loop circuitry, so use extra
care to keep it stable.
This pin supplies voltage to code RAM. To retain data, maintain 5 volts.
Always leave NC (no connect) pins unconnected to prevent accidental
entry into test modes.
Name
Name
Name
Table 3. Pin Assignment Arranged by Functional Categories (Continued)
87
9, 10, 30, 46
11, 12, 29, 50, 61, 68, 69, 94, 101, 128, 151
88
39–44, 67, 69, 80, 91, 93, 121
Type
I/O
I/O
I
System Address Bus
These address lines provide address bits 0–15 during the entire external
memory cycle during both multiplexed and demultiplexed bus modes.
Address Lines 16–20
These address lines provide address bits 16–20 during the entire external
memory cycle, supporting extended addressing of the 2 Mbyte address space.
NOTE: Internally, there are 24 address bits; however, only 21 external
A20:16 are multiplexed with EPORT.4:0.
Analog Channels
These pins are analog inputs to the A/D converter.
The ANGND and V
Power & Ground
No Connection
†
, 51, 60, 66
address pins (A20:0) are implemented. The internal address space is
16 Mbytes (000000–FFFFFFH) and the external address space is 2
Mbytes (00000–1FFFFFH). The device resets to FF2080H in internal
memory or 1F2080H in external memory.
Table 4. Signal Descriptions
††
, 92, 100, 127, 152
Pins
Pins
REF
pins must be connected for the A/D converter to function.
Description
ADVANCE INFORMATION
CLKOUT
EA#
EXTINT
NMI
ONCE#
PLLEN
RESET#
RPD
TMODE#
XTAL1
XTAL2
CRBUSY#
CRDCLK
CRIN
CROUT
Processor Control
Code Debug
Name
Name
Pin
Pin
52
45
57
89
53
47
90
21
22
49
48
62
65
64
63