Z86D7308VSC1987 Zilog, Z86D7308VSC1987 Datasheet - Page 8

• Manufacturer Part Number: Z86D7308VSC1987
• Description: IC 32K OTP 3 VOLT 44-PLCC
• Manufacturer: Zilog
• Series: Z8® IRr

Specifications of Z86D7308VSC1987

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: Brown-out Detect/Reset, LVD, POR, WDT
• Number Of I /o: 31
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 236 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

General Description
PS019401-1102
Note:
The Z86D73 is an OTP-based member of the MCU family of IR (infrared) micro-
controllers. With 237 bytes of general-purpose RAM and 32 KB of ROM, ZiLOG’s
CMOS microcontrollers offer fast executing, efficient use of memory, sophisticated
interrupts, input/output bit manipulation capabilities, automated pulse generation/
reception, and internal key-scan pull-up transistors.
The Z86D73 architecture is based on ZiLOG’s 8-bit microcontroller core with an
Expanded Register File to allow access to register-mapped peripherals, input/out-
put (I/O) circuits, and powerful counter/timer circuitry. The Z8 offers a flexible I/O
scheme, an efficient register and address space structure, and a number of ancil-
lary features that are useful in many consumer, automotive, computer peripheral,
and battery-operated hand-held applications.
There are four basic address spaces available to support a wide range of configu-
rations: Program Memory, Register File, Expanded Register File, and External
Memory. The register file is composed of 256 bytes of RAM. It includes 4 I/O port
registers, 16 control and status registers, and 236 general-purpose registers. The
Expanded Register File consists of two additional register groups (F and D).
To unburden the program from coping with such real-time problems as generating
complex waveforms or receiving and demodulating complex waveform/pulses, the
Z86D73 offers a new intelligent counter/timer architecture with 8-bit and
16-bit counter/timers (see Figure 1). Also included are a large number of user-
selectable modes and two on-board comparators to process analog signals with
separate reference voltages (see Figure 2).
–
–
–
–
–
–
–
–
Oscillator operational mode: normal high-frequency operation enabled or
32-KHz operation enabled
Port 0: 0–3 pull-ups
Port 0: 4–7 pull-ups
Port 1: 0–3 pull-ups
Port 1: 4–7 pull-ups
Port 2: 0–7 pull-ups
Port 3: pull-ups
Port 0: 0–3 mouse mode: normal mode (.5V
mouse mode (.4V
The mask option pull-up transistor has a typical equivalent
resistance of 200 K
V
CC
=2 V.
P
R
DD
E
input threshold)
L
±
50% at V
I
M
I
CC
N
=3 V and 450 K
A
40/44/48-Pin Low-Voltage IR OTP
R
DD
Y
input threshold) versus
±
50% at
Z86D73
2