Z86C71
| Model | Z86C71 |
| Description | IR/Low-Voltage Microcontroller |
| PDF file | Total 61 pages (File size: 350K) |
| Chip Manufacturer | ZILOG |
P
RELIMINARY
P
RODUCT
S
PECIFICATION
1
Z86L70/71/75/C71
IR/L
OW
-V
OLTAGE
M
ICROCONTROLLER
FEATURES
Part
Z86L70
Z86L71
Z86L75
Z86C71
ROM
(KB)
2
8
4
8
RAM*
(Bytes)
125
237
237
237
I/O
14
16
14
16
Voltage
Ranges
2.0V to 3.9V
2.0V to 3.9V
2.0V to 3.9V
4.5V to 5.5V
–
–
s
s
s
s
1
One Programmable 16-Bit Counter/Timer with
One Capture Register
Programmable Input Glitch Filter for Pulse
Reception
Five Priority Interrupts
Low Voltage Detection and Protection
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 KOhm Pull-Ups on Ports 0, 2, 3
Note:
*General-Purpose
Two Standby Modes (Typical)
– STOP - 2
µ
A
– HALT - 0.8 mA
Special Architecture to Automate Both Generation and
Reception of Complex Pulses or Signals:
– One Programmable 8-Bit Counter/Timer with Two
Capture Registers
s
s
s
s
GENERAL DESCRIPTION
The Z86L7X family of IR (Infrared)/Low-Voltage Microcon-
trollers are ROM/ROMless-based members of the Z8
®
MCU single-chip family with 237/125 bytes of internal
RAM. The differentiating factor between these devices is
the availability of RAM, ROM and package options. Offer-
ing the 3V versions (Z86LXX) with the Z86C71 gives opti-
mum performance in both the low and high voltage ranges.
Zilog's CMOS Low-Voltage Microcontrollers offer fast exe-
cution, efficient use of memory, sophisticated interrupts, in-
put/output bit manipulation capabilities, automated pulse
generation/reception, and internal key-scan pull-up resis-
tors. The Z86L7X product line offers easy hardware/soft-
ware system expansion with cost-effective and low power
consumption.
The Z86L7X architecture is based on Zilog's 8-bit micro-
controller core with an Expanded Register File to allow ac-
cess to register mapped peripherals, I/O circuits, and pow-
erful counter/timer circuitry. The Z8
®
MCU offers a flexible
I/O scheme, an efficient register and address space struc-
ture, and a number of ancillary features that are useful in
many consumer, automotive, computer peripheral, and
battery operated hand-held applications.
There are three basic address spaces available to support
a wide range of configurations: Program Memory, Register
File, and Expanded Register File. The register file is com-
posed of 256/144 bytes of RAM. It includes four I/O port
registers, 15 control and status registers and the rest are
General-Purpose registers. The Expanded Register File
consists of two additional register groups (F and D). Exter-
nal Memory is not available on 18 and 20-pin versions.
DS97LVO0500
PRELIMINARY
1-1
