Z86D7308VSC1987 Zilog, Z86D7308VSC1987 Datasheet - Page 30

• 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
Note:
Two on-board comparators process analog signals on P31 and P32, with refer-
ence to the voltage on Pref1 and P33. The analog function is enabled by program-
ming the Port 3 Mode Register (bit 1). P31 and P32 are programmable as rising,
falling, or both edge triggered interrupts (IRQ register bits 6 and 7). Pref1 and P33
are the comparator reference voltage inputs. Access to the Counter Timer edge-
detection circuit is through P31 or P20 (see “CTR1(D)01h” on page 37). Other
edge detect and IRQ modes are described in Table 9.
2
Table 9. Pin Assignments
Port 3 also provides output for each of the counter/timers and the AND/OR Logic
(see Figure 14). Control is performed by programming bits D5–D4 of CTR1, bit 0
of CTR0, and bit 0 of CTR2.
Pin
Pref1
P31
P32
P33
P34
P35
P36
P37
P20
Comparators are powered down by entering STOP Mode. For
P31–P33 to be used in a Stop-Mode Recovery (SMR) source,
these inputs must be placed into digital mode.
I/O
IN
IN
IN
OUT
OUT
OUT
OUT
I/O
P
R
C/T
IN
T8
T16
T8/16
IN
E
L
Comp.
RF1
AN1
AN2
RF2
AO1
AO2
I
M
I
N
Int.
IRQ2
IRQ0
IRQ1
A
40/44/48-Pin Low-Voltage IR OTP
R
Y
Z86D73
24