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Z86L72 Datasheet

  • Z86L72

  • IR MICROCONTROLLER

  • 71頁

  • ZILOG   ZILOG

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P
RODUCT
S
PECIFICATION
1
Z86C72/C92/L72/L92
IR M
ICROCONTROLLER
FEATURES
Part
Z86C72
Z86C92
Z86L72
Z86L92
ROM
(KB)
16
0
16
0
RAM*
(Bytes)
748
748
748
748
鈥?/div>
I/O
31
31
31
31
Voltage Range
4.5V to 5.5V
4.5V to 5.5V
2.0V to 3.9V
2.0V to 3.9V
s
1
Programmable Input Glitch Filter for Pulse
Reception
Five Priority Interrupts
鈥?Three External
鈥?/div>
Two Assigned to Counter/Timers
Note:
*General-Purpose
s
s
s
s
s
Low Voltage Detection and Standby Mode
Programmable Watch-Dog/Power-On Reset Circuits
Two Independent Comparators with Programmable
Interrupt Polarity
On-Chip Oscillator that Accepts a Crystal, Ceramic
Resonator, LC, RC (mask option), or External Clock
Drive
Mask Selectable 200 kOhms Pull-Ups on Ports 0, 2, 3
鈥?All Eight Port 2 Bits at one time or Not
鈥?Pull-Ups Automatically Disabled Upon Selecting
Individual Pins as Outputs
Maskable Mouse/Trackball Interface on P00 Through
P03 is available on the L72 version.
32 kHz Oscillator Mask Option
Expanded Register File Control Registers
Low Power Consumption - 40 mW (typical)
Three Standby Modes:
鈥?STOP
鈥?HALT
鈥?Low Voltage
Automatic External ROM
(Z86LX2/C72 Version)
Access
Beyond
16K
s
s
s
s
s
Special Architecture to Automate Both Generation and
Reception of Complex Pulses or Signals:
鈥?One Programmable 8-Bit Counter/Timer with Two
Capture Register
鈥?One Programmable 16-Bit Counter/Timer with
One Capture Register
s
s
GENERAL DESCRIPTION
The Z86LX2/CX2 family of IR (Infrared) are ROM/ROM-
less-based members of the Z8
MCU single-chip micro-
controller family with 768 bytes of internal RAM. The differ-
entiating factor between these devices is the availability of
RAM, ROM and package options. The use of external
memory enables these Z8 microcontrollers to be used
where code flexibility is required. Offering the 5V versions
(Z86CXX) and gives optimum performance in both the low
and high voltage ranges. Zilog's CMOS microcontrollers
DS97LVO0900
offer fast execution, efficient use of memory, sophisticated
interrupts, input/output bit manipulation capabilities, auto-
mated pulse generation/reception, and internal key-scan
pull-up resistors. The Z86LX2/CX2 product line offers easy
hardware/software system expansion with cost-effective
and low power consumption.
The Z86LX2/CX2 architecture is based on Zilog's 8-bit mi-
crocontroller core with an Expanded Register File to allow
PRELIMINARY
6-1

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