ZGP323HES2832C Zilog, ZGP323HES2832C Datasheet - Page 23

• Manufacturer Part Number: ZGP323HES2832C
• Description: IC Z8 GP MCU 32K OTP 28SOIC
• Manufacturer: Zilog
• Series: Z8® GP™r

Specifications of ZGP323HES2832C

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: HLVD, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 237 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-3533

ZGP323H
Product Specification
18
Comparator Inputs
In analog mode, P31 and P32 have a comparator front end. The comparator reference is
supplied to P33 and Pref1. In this mode, the P33 internal data latch and its corresponding
IRQ1 are diverted to the SMR sources (excluding P31, P32, and P33) as indicated in
Figure 10
on page 15. In digital mode, P33 is used as D3 of the Port 3 input register, which
then generates IRQ1.
Note:
Comparators are powered down by entering STOP Mode. For P31–P33 to be used in a
Stop Mode Recovery source, these inputs must be placed into digital mode.
Comparator Outputs
These channels can be programmed to be output on P34 and P37 through the PCON
register.
RESET (Input, Active Low)
Reset initializes the MCU and is accomplished either through Power-On, Watchdog
Timer, Stop Mode Recovery, Low-Voltage detection, or external reset. During Power-On
Reset and Watchdog Timer Reset, the internally generated reset drives the reset pin Low
for the POR time. Any devices driving the external reset line must be open-drain to avoid
damage from a possible conflict during reset conditions. Pull-up is provided internally.
When the Z8 GP asserts (Low) the RESET pin, the internal pull-up is disabled. The Z8 GP
does not assert the RESET pin when under VBO.
Note:
The external Reset does not initiate an exit from STOP mode.
PS023807-0707
Pin Description