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Standard Products
UT69RH051 Radiation-Hardened MicroController
Data Sheet
June 2004

FEATURES
‰ Three 16-bit timer/counters
- High speed output
- Compare/capture
- Pulse width modulator
- Watchdog timer capabilities
‰ 256 bytes of on-chip data RAM
‰ 32 programmable I/O lines
‰ 7 interrupt sources
‰ Programmable serial channel with:
- Framing error detection
- Automatic address recognition
‰ TTL and CMOS compatible logic levels
‰ 64K external data and program memory space
‰ MCS-51 fully compatible instruction set
‰ Flexible clock operation
- 1Hz to 20MHz with external clock
- 2MHz to 20MHz using internal oscillator with external
crystal
‰ Radiation-hardened process and design; total dose irradia-
tion testing MIL-STD-883 Method 1019
- Total dose: 1.0E6 rads(Si)
- Latchup immune
‰ Packaging options:
- 40-pin 100-mil center DIP (0.600 x 2.00)
- 44-lead 25-mil center Flatpack (0.670 x 0.800)
‰ Standard Microcircuit Drawing 5962-95638 available
- QML Q & V compliant
RAM
PORT 0
LATCH
PORT 2
LATCH
PORT 0
DRIVERS
PORT 2
DRIVERS
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCREMENTER
PROGRAM
COUNTER
DPTR
PORT 3
LATCH
PORT 3
DRIVERS
PORT 1
DRIVERS
OSC.
PORT 1
LATCH
PSW TMP3
B
REGISTER
ACC
STACK
POINTER
ALU
TMP2 TMP1
SPECIAL FUNCTION
REGISTERS,
TIMERS,
PCA,
SERIAL PORT
MICR
O-
RAM A
DDRESS
RE
GISTER
SEQUENCER
INST
RUCT
ION
REGISTER
PSEN
ALE
EA
RST
P1.0 - P1.7
P3.0 - P3.7
XTAL2XTAL1
Figure 1. UT69RH051 MicroController Block Diagram