Z8673312SSG Zilog, Z8673312SSG Datasheet - Page 78

• Manufacturer Part Number: Z8673312SSG
• Description: IC MICROCONTROLLER 8K 28-SOIC
• Manufacturer: Zilog
• Series: Z8®r

Specifications of Z8673312SSG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: EBI/EMI
• Peripherals: POR, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 237 x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: Z8673x
• Core: Z80
• Data Bus Width: 8 bit
• Data Ram Size: 237 B
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 2
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-3940; Z8673312SSG

PS022901-0508
R249 IPR
D7 D6 D5
R250 IRQ
D7 D6 D5
Figure 50. Interrupt Request Register (FA
Figure 49. Interrupt Priority Register (F9
Default After Reset = 00h
D4 D3 D2 D1
D4 D3 D2 D1
D0
D0
Interrupt Group Priority
000 Reserved
001 C > A > B
010 A > B > C
011 A > C > B
100 B > C > A
101 C > B > A
110 B > A > C
111 Reserved
IRQ1, IRQ4 Priority (Group C)
0 IRQ1 > IRQ4
1 IRQ4 > IRQ1
IRQ0, IRQ2 Priority (Group B)
0 IRQ2 > IRQ0
1 IRQ0 > IRQ2
IRQ3, IRQ5 Priority (Group A)
0 IRQ5 > IRQ3
1 IRQ3 > IRQ5
Reserved (Must be 0)
IRQ0 = P32 Input
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = P30 Input
IRQ4 = T0
IRQ5 = T1
Inter Edge
P31
P31
P31
P31
CMOS Z8
h
h
: Write Only)
: Read/Write)
↓
↓
↑
↑↓
P32
P32
P32
P32
↓
↑
↓
↑↓
®
Product Specification
OTP Microcontrollers
= 00
= 01
= 10
= 11
Electrical Characteristics
74