Z86E4312FSC Zilog, Z86E4312FSC Datasheet - Page 50

• 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

PS022901-0508
Functional Description
Note:
Note:
The MCU incorporates the following special functions to enhance the standard Z8 archi-
tecture to provide the user with increased design flexibility.
RESET. The device is reset in one of three ways:
1. Power-On Reset
2. Watchdog Timer
3. Stop Mode Recovery Source
Program Memory. The MCU can address up to 4/8/16 KB of Internal Program Memory
(see
tors. These locations contain six 16-bit vectors that correspond to the six available inter-
rupts. For EPROM mode, byte 12 (000Ch) to address 4095 (0FFFh)/8191 (1FFFh)/
16384 (3FFFh), consists of programmable EPROM. After reset, the program counter
points at the address 000Ch, which is the starting address of the user program.
In ROMless mode, the Z86E43/743/E44 can address up to 64 KB of External Program
Memory. The ROM/ROMless option is only available on the 44-pin devices.
Figure
Having the Auto Power-On Reset circuitry built-in, the MCU does not
need to be connected to an external power-on reset circuit. The reset
time is T
and P3M registers to their reset values on a Stop Mode Recovery
operation.
The device V
the T
22). The first 12 bytes of program memory are reserved for the interrupt vec-
POR
POR
expires.
CC
. The MCU does not re-initialize WDTMR, SMR, P2M,
must rise up to the operating V
CMOS Z8
CC
specification before
®
Product Specification
OTP Microcontrollers
Electrical Characteristics
46