P
RELIMINARY
P
RODUCT
S
PECIFICATION
1
Z86E72/73
OTP IR M
ICROCONTROLLERS
FEATURES
Part
Z86E73
Z86E72
ROM
(KB)
32
16
RAM*
(Bytes)
256
768
I/O
31
31
Voltage
Range
3.0V to 5.5V
3.0V to 5.5V
s
1
Five Priority Interrupts
– Three External
– Two Assigned to Counter/Timers
Two Independent Comparators with Programmable
Interrupt Polarity
On-Chip Oscillator that Accepts a Crystal, Ceramic
Resonator, LC, RC (mask option), or External Clock
Drive
Software Selectable 200 kOhms Pull-Ups on Ports 0 and
Port 2
– All Eight Port 2 Bits at One Time or Not Pull-Ups
Automatically Disabled Upon Selecting Individual
Pins as Outputs.
Software Mouse/Trackball Interface on P00 Through
P03
s
Note:
*General-Purpose
s
s
Low Power Consumption - 60 mW (Typical)
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
– One Programmable 16-Bit Counter/Timer with
One Capture Register
– Programmable Input Glitch Filter for Pulse
Reception
s
s
s
s
GENERAL DESCRIPTION
The Z86E7X family of IR (Infrared) CCP
™
(Consumer Con-
troller Processor) are OTP-based members of the Z8
®
sin-
gle-chip microcontroller family with 256 or 768 bytes of
general-purpose RAM. The only differentiating factor be-
tween the E72/73 versions is the availability of RAM and
ROM. This EPROM Microcontroller family of OTP IR con-
trollers also offer the use of external memory which en-
ables this Z8 microcontroller to be used where code flexi-
bility is required. Zilog's CMOS microcontrollers offer fast
execution, efficient use of memory, sophisticated inter-
rupts, input/output bit manipulation capabilities, automated
pulse generation/reception, and easy hardware/software
system expansion along with cost-effective and low power
consumption.
The Z86E7X 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 CCP offers a flexible I/O
scheme, an efficient register and address space structure,
and a number of ancillary features that are useful in many
consumer, automotive, computer peripheral, and battery
operated hand-held applications.
CCP
™
applications demand powerful I/O capabilities. The
Z86L7X family fulfills this with five package options in
which the E72/73/L74 versions provide 31 pins of dedicat-
ed input and output. These lines are grouped into four
ports. Each port consists of eight lines (Port 3 has seven
lines of I/O and one Pref comparator input) and is config-
DS96LVO1100
PRELIMINARY
1-1
ZILOG [ ZILOG, INC. ]
