ZMOT0BSB0A0BG Zilog, ZMOT0BSB0A0BG Datasheet - Page 25

• Manufacturer Part Number: ZMOT0BSB0A0BG
• Description: Microcontrollers (MCU) ZMB N. SDA02-54-P Py Fr AA 0.9 GI T1 Lens
• Manufacturer: Zilog

Specifications of ZMOT0BSB0A0BG

• Processor Series: ZMOTION
• Core: Z8FS040
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Program Memory Type: Flash
• Program Memory Size: 4 KB
• Package / Case: SOIC-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Hardware Connection Requirements
PS028510-0111
This section describes the required external hardware connection for the ZMOTION MCU
Series.
Pins are automatically configured to their required function when the PIR engine is initial-
ized via the EPIR_INIT macro.
See Appendix A for example schematic diagrams showing the required connections.
The device can be operated in Single Pyro mode supporting one Pyroelectric sensor or
Dual Pyro mode supporting two Pyroelectric sensors. Both of these modes can be operated
in Normal or Low Scan Rate modes.
Depending on the application, there can be up to 3 connection requirements supporting
these modes:
Pyroelectric Sensor (PIR Sensor).
to the ANA2 input of the ADC. The ADC is configured for differential, buffered mode by
Zilog’s PIR technology. The sensor signal should be connected directly to the ADC input
with no additional signal conditioning circuitry unless specified by the pyroelectric sensor
manufacturer.
ADC VREF.
connected to the '+' differential input of the ADC (ANA2) and the VREF signal is con-
nected to the '-' differential input (ANA3). The 8 pin device has an internal connection
from VREF to ANA3 to support this configuration therefore no external hardware connec-
tion is required. The 20 and 28 pin devices require an external connection from the VREF
out signal to the ADC '-' (ANA3) input.
Pyroelectric Passive Infrared Sensor #2.
differential, buffered mode (same as Single Pyro mode). The signal from the second PIR
sensor is connected to ANA3. The VREF signal is no longer connected to ANA3 ('-' ADC
input). The fist PIR sensor is connected to the '+' ADC input (ANA2) as it is in Single
Pyro mode. The VREF signal is still used internally for the ADC, but the external pin is
unused in Dual Pyro mode.
The on chip VREF is configured for 1V nominal. The PIR Sensor signal is
The signal from the PIR sensor is connected directly
ZMOTION™ Detection and Control Family
In Dual Pyro mode, the ADC is still used in
Hardware Connection Requirements
Product Specification
18