Z86E4312FSC Zilog, Z86E4312FSC Datasheet - Page 49

• Manufacturer Part Number: Z86E4312FSC
• Description: Z8 4K OTP 12 MHZ 44-PQFP
• Manufacturer: Zilog
• Series: Z8®r

Specifications of Z86E4312FSC

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: EBI/EMI
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: OTP
• Ram Size: 236 x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-LQFP
• Data Bus Width: 8 bit
• Data Ram Size: 236 B
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2 bit
• Operating Supply Voltage: 3.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No
• Other names: 269-1108

Table 19. Port 3 Pin Assignments
PS022901-0508
Pin
P30
P31
P32
P33
P34
P35
P36
P37
I/O
IN
IN
IN
IN
OUT
OUT
OUT
OUT
Note:
Comparator Inputs. Port 3, P31, and P32, each have a comparator front end. The com-
parator reference voltage P33 is common to both comparators. In analog mode, P31 and
P32 are the positive input of the comparators and P33 is the reference voltage of the com-
parators.
Auto Latch. The Auto Latch puts valid CMOS levels on all CMOS inputs (except P33-
P31) that are not externally driven. Whether this level is 0 or 1, cannot be determined. A
valid CMOS level, rather than a floating node, reduces excessive supply current flow in
the input buffer. Auto Latches are available on Port 0, Port 1, Port 2, and P30. There are no
Auto Latches on P31, P32, and P33.
Low EMI Emission. The Z86E43/743/E44 can be programmed to operate in a low EMI
Emission Mode in the PCON register. The oscillator and all I/O ports can be programmed
as low EMI emission mode independently. Use of this feature results in:
•
•
•
•
The pre-drivers slew rate reduced to 10 ns typical.
Low EMI output drivers have resistance of 200 Ohms (typical).
Low EMI Oscillator.
Internal SCLK/TCLK= XTAL operation limited to a maximum of 4 MHz - 250 ns cycle
time, when Low EMI Oscillator is selected.
CTC1
T
T
For emulation only:
Do not set the emulator to emulate Port 1 in low EMI mode. Port 1
must always be configured in Standard Mode.
IN
OUT
Analog
AN1
AN2
REF
AN1-Out
An2-Out
Interrupt P0 HS
IRQ3
IRQ2
IRQ0
IRQ1
D/R
R/D
CMOS Z8
P1 HS
D/R
D/R
R/D
R/D
®
Product Specification
OTP Microcontrollers
P2 HS
Electrical Characteristics
Ext
DM
45