ZLF645E0XXX32G ZILOG [Zilog, Inc.], ZLF645E0XXX32G Datasheet - Page 3

• Manufacturer Part Number: ZLF645E0XXX32G
• Description: ZLF645 Crimzon Flash Microcontroller with ZBase Database Industry Leading Universal Infrared Remote Control (UIR) Solution
• Manufacturer: ZILOG [Zilog, Inc.]

key features
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CRIMZON
uIR SOLutION wIth ZbaSe databaSe
timers
analog comparators
watchdog timer
®
ZLF645 Flash MCu
Programmable
Programmable
Programmable
Programmable
Fix Push Pull
Crimzon ZLF645 Flash MCU Detailed Feature Set
timers
Zilog’ s patented timers can generate and capture infrared signal precisely without the need of the external
filter. The infrared timer features a 16-bit and an 8-bit counter/timer, each of which can be used simultaneously
for transmitting. In addition to the 16-bit and 8-bit timers, the UART’ s baud rate generator can be used as an
additional 8-bit timer when the UART receiver is not in use. The Crimzon ZLF645 Flash MCU’ s infrared timer
contains a glitch filter for removing noise from the input when demodulating an input carrier.
analog comparators
The Crimzon ZLF645 Flash MCU has two on-board analog comparators with independent reference voltages
and programmable interrupt polarity. They are ideal for converting analog voltage levels into digital levels. These
comparators can also generate interrupts and are ideal for system monitoring.
watchdog timer
The Watchdog Timer (WDT) is a programmable one-shot timer that resets the Z8 LXMC CPU if it reaches its
terminal count. The maximum WDT period in the Crimzon ZLF645 Flash MCU is 5 seconds. The MCU can
essentially put itself into STOP mode to minimize current consumption. Typical STOP mode current with the
Watchdog running is about 8 µA.
Crimzon ZLF645 Series Architecture
Directional
Directional
Directional
Fix CMOS
Directional
I/O Nibble
I/O Byte
Output
I/O Bit
I/O Bit
Input
P47
P45
P46
P00
P01
P02
P03
P04
P05
P06
P07
P04
P05
P06
P07
P26
P27
P41
P42
P43
P44
P10
P11
P12
P13
P20
P21
P22
P23
P24
P25
P40
P31
P32
P33
P34
P35
P36
P37
P30
8
4
4
Port 0
Port 3
Port 2
Port 4
Port 1
Register Bus
Up to 64 KB
Expanded
Register
Flash
File
Register File
512B/1K
Data Bus
Internal
Address Bus
Internal
Register Bus
(continued...)
Z8 LXMC Core
dIgItaL INFRaRed SOLutIONS
Power-On Reset
Instruction
Comparators
Machine
Timing &
Low-Voltage/
High-Voltage
16-Bit Timer
Amplification
Control
IR Learning
8-Bit Timer
with UART
8-Bit Timer
Detection
Two
RESET
XTAL2
XTAL1
PB019710-0308
3