Z86D7308VSC1987 Zilog, Z86D7308VSC1987 Datasheet - Page 28

• 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: -

PS019401-1102
Port 2 (P27–P20)
Open-Drain
I/O
Out
In
Port 2 is an 8-bit, bidirectional, CMOS-compatible I/O port (see Figure 12). These
eight I/O lines can be independently configured under software control as inputs
or outputs. Port 2 is always available for I/O operation. A mask option is available
to connect eight pull-up transistors on this port. Bits programmed as outputs are
globally programmed as either push-pull or open-drain. The POR resets with the
eight bits of Port 2 configured as inputs.
Port 2 also has an 8-bit input OR and AND gate, which can be used to wake up
the part. P20 can be programmed to access the edge-detection circuitry in
demodulation mode.
Figure 12. Port 2 Configuration
Z86D73
OTP
P
R
E
L
I
M
I
N
A
Port 2 (I/O)
40/44/48-Pin Low-Voltage IR OTP
R
Y
Mask
Option
Pad
V
CC
Resistive
transistor
pull-up
Z86D73
22