ZGP323LEH2808G Zilog, ZGP323LEH2808G Datasheet - Page 61

• Manufacturer Part Number: ZGP323LEH2808G
• Description: IC Z8 GP MCU 8K OTP 28SSOP
• Manufacturer: Zilog
• Series: Z8® GP™r

Specifications of ZGP323LEH2808G

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: HLVD, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 237 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-4440; ZGP323LEH2808G

PS023709-0208
Note:
WDTMR During STOP (D3)
This bit determines whether or not the WDT is active during STOP mode. Because the
XTAL clock is stopped during STOP mode, the on-board RC has to be selected as the
clock source to the WDT/POR counter. A 1 indicates active during Stop. The default is 1.
EPROM Selectable Options
There are seven EPROM Selectable Options to choose from based on ROM code
requirements. These options are listed in
Table 16. EPROM Selectable Options
Voltage Brownout/Standby
An on-chip Voltage Comparator checks that the V
operation of the device. Reset is globally driven when V
in V
the V
level is returned to above V
Low-Voltage Detection Register—LVD(D)0Ch
Voltage detection does not work at STOP mode. It must be disabled during STOP mode in
order to reduce current.
Port 00–03 Pull-Ups
Port 04–07 Pull-Ups
Port 10–13 Pull-Ups
Port 14–17 Pull-Ups
Port 20–27 Pull-Ups
EPROM Protection
Watchdog Timer at Power-On Reset ON/OFF
DD
DD
causes the XTAL1 and XTAL2 circuitry to stop the crystal or resonator clock. If
is allowed to stay above V
BO
, the device performs a POR and functions normally.
RAM
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
, the RAM content is preserved. When the power
Table
16.
DD
is at the required level for correct
DD
falls below V
Product Specification
Functional Description
BO
. A small drop
ZGP323L
57