TMS370Cx8x
8-BIT MICROCONTROLLER
SPNS035B –DECEMBER 1995 – REVISED FEBRUARY 1997
N PACKAGE
(TOP VIEW)
CMOS/EEPROM/EPROM Technologies on
a Single Device
1
40
39
38
37
36
35
34
33
32
31
C2
C3
C1
– Mask-ROM Devices for High-Volume
Production
– One-Time-Programmable (OTP) EPROM
Devices for Low-Volume Production
– Reprogrammable EPROM Devices for
Prototyping Purposes
Internal System Memory Configurations
– On-Chip Program Memory Versions
– ROM: 4K Bytes
– EPROM: 16K Bytes
– Data EEPROM: 256 Bytes
– Static RAM: 128 or 256 Bytes Usable as
Registers
Flexible Operating Features
2
C0
3
C4
B0
4
C5
B1
5
RESET
INT1
INT2
INT3
NC
B2
6
B3
7
MC
8
XTAL2/CLKIN
XTAL1
9
10
11
12
13
14
15
16
17
18
19
20
V
B7
CC
A7
30 B6
29 B5
28 B4
A6
A5
A4
A3
A2
A1
A0
D7
D4
27
V
SS
26 T1IC/CR
25 T1PWM
24 T1EVT
D5
D6
D3
23
22
21
– Low-Power Modes: STANDBY and HALT
– Commercial, Industrial, and Automotive
Temperature Ranges
FZ AND FN PACKAGES
(TOP VIEW)
– Clock Options
– Divide-by-1 (2 MHz–5 MHz SYSCLK) PLL
– Divide-by-4 (0.5 MHz–5 MHz SYSCLK)
– Supply Voltage (V ) 5 V ±10%
CC
16-Bit General Purpose Timer
– Software Configurable as
6
5
4
3 2 1
44 43 42 41 40
39
INT1
INT2
INT3
MC
7
8
9
XTAL2/CLKIN
38
37
36
35
34
33
32
31
30
29
a 16-Bit Event Counter, or
XTAL1
B7
V
10
11
12
13
14
15
16
17
a 16-Bit Pulse Accumulator, or
a 16-Bit Input Capture Functions, or
Two Compare Registers, or a
Self-Contained Pulse Width Modulation
(PWM) Function
CC
NC
A7
A6
B6
B5
NC
B4
V
SS
A5
A4
A3
C7
C6
On-Chip 24-Bit Watchdog Timer
– EPROM/OTP Device: Standard
Watchdog
NC
18 19 20 21 22 23 24 25 26 27 28
– Mask-ROM Devices: Hard Watchdog,
Simple Counter, or Standard Watchdog
Flexible Interrupt Handling
– Two S/W Programmable Interrupt Levels
– Global- and Individual-Interrupt Masking
– Programmable Rising- or Falling-Edge
Detect
– Individual Interrupt Vectors
TMS370 Series Compatibility
– Register-to-Register Architecture
– 256 General-Purpose Registers
– 14 Powerful Addressing Modes
– Instructions Upwardly Compatible With
all TMS370 Devices
CMOS/Package/TTL Compatible I/O Pins
– 40-Pin Plastic Dual-In-Line Packages/
32 Bidirectional Pins, 1 Input Pin
– 44-Pin Plastic Leaded Chip Carrier (LCC)
Packages/34 Bidirectional Pins,
1 Input Pin
Workstation/PC-Based Development
System
– C Compiler and C Source Debugger
– Real-Time In-Circuit Emulation
– Extensive Breakpoint/Trace Capability
– Multi-Window User Interface
– Microcontroller Programmer
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443