Z86D990 Datasheet, PDF (15/102 Pages) Zilog, Inc. – Low-Voltage Micro controllers with ADC

Z86D990/Z86D991 OTP and Z86L99X ROM
Low-Voltage Microcontrollers with ADC
8
Table 2. Pin Descriptions (Continued)
Symbol
P41
P42
P43
P44
P45
P46
P47
P50, CREF1
P51, CIN1
P52, CIN2
P53, CREF2
P54
P55
P56
P57
P60
P61
P62
P63
P64
P65
P66
P67
XTAL1
XTAL2
AV_DD
V_{DD_CORE}
AV_SS
V_Ref–
V_Ref+
V_{DD_padring}
V_SS
Notes:
Pin #
28
40 48
PDIP/SOIC PDIP SSOP Direction Description
20
30 35
I/O
Port 4 Bit 1, T16 Output
21
31 36
I/O
Port 4 Bit 2
23
33 39
Output T8/T16 Output, Controlled current output
4
8
9
I/O
Port 4 Bit 4, A/D Channel 0*
5
9
10
I/O
Port 4 Bit 5, A/D Channel 1*
6
10 11
I/O
Port 4 Bit 6, A/D Channel 2*
7
11 12
I/O
Port 4 Bit 7, A/D Channel 3*
18
28 33
I/O
Port 5 Bit 0, Comparator 1 reference
11
17 20
I/O
Port 5 Bit 1, Capture timer input, IRQ₂
12
18 21
Input
Port 5 Bit 2, Timer 1 timer input, IRQ₀
13
19 22
Input
Port 5 Bit 3, Comparator 2 reference, IRQ₁
14
20 23
I/O
Port 5 Bit 4, High drive output
15
25 28
I/O
Port 5 Bit 5, High drive output
17
27 32
I/O
Port 5 Bit 6, Timer 1 output, High drive output
16
26 29
I/O
Port 5 Bit 7, High drive output
39 47
I/O
Port 6 Bit 0
40 48
I/O
Port 6 Bit 1
1
1
I/O
Port 6 Bit 2
2
2
I/O
Port 6 Bit 3
21 24
I/O
Port 6 Bit 4
22 25
I/O
Port 6 Bit 5
23 26
I/O
Port 6 Bit 6
24 27
I/O
Port 6 Bit 7
10
16 18
Input
Crystal, Oscillator clock
9
15 17
Output Crystal, Oscillator clock
13 14
Analog power supply
13 15
Z8 core power supply
6
7
Analog ground
7
8
Input
A/D converter lower reference
12 13
Input
A/D converter upper reference
8**
14 16
Power supply (pad ring)
22**
32 37, 38
Ground
*A/D converter is not available in the 28-pin configuration.
**In the 28-pin configuration, all three (core, pad ring, and analog) powers are tied together.
PS003807-1002
PRELIMINARY