Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 124

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Z8F011ASH020EG2156

Manufacturer Part Number
Z8F011ASH020EG2156
Description
8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
Manufacturer
ZiLOG
Datasheet

Specifications of Z8F011ASH020EG2156

Rohs
yes
Core
eZ8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
1 KB
Data Ram Size
256 B
On-chip Adc
No
Package / Case
SOIC-20
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
17
Number Of Timers
2
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
Comparator
PS025113-1212
Operation
Caution:
The Z8 Encore! F0830 Series devices feature a general purpose comparator that compares
two analog input signals. A GPIO (
negative input (
reference. The output is available as an interrupt source or can be routed to an external pin
using the GPIO multiplex. The comparator includes the following features:
One of the comparator inputs can be connected to an internal reference that is a user-
selectable reference and is user-programmable with 200 mV resolution.
The comparator can be powered down to save supply current. For details, see the
Control Register 0
The following example shows how to safely enable the comparator:
di
ld cmp0,r0; load some new configuration
nop
nop
clr irq0 ; clear any spurious interrupts pending
ei
As a result of the propagation delay of the comparator, Zilog does not recommend en-
abling the comparator without first disabling interrupts and waiting for the comparator
output to settle. This delay prevents spurious interrupts after comparator enabling.
Positive input is connected to a GPIO pin
Negative input can be connected to either a GPIO pin or a programmable internal ref-
erence
Output can be either an interrupt source or an output to an external pin
; wait for output to settle
CINN
section on page 31.
) can be taken from either an external GPIO pin or from an internal
CINP
) pin provides the positive comparator input. The
Z8 Encore!
Product Specification
®
F0830 Series
Comparator
Power
106

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