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Z86C93 Datasheet

CMOS Z8 MULT/DIV MICROCONTROLLER


Z86C93 Datasheet Preview


Z86C93
CPS DC-4020-12
CUSTOMER PROCUREMENT SPECIFICATION
GENERAL DESCRIPTION
The Z86C93 is a CMOS ROMless Z8 microcontroller en-
hanced with a hardwired 16-bit x 16-bit multiplier,
32-bit/16-bit divider, and three 16-bit counter timers (see
Functional Block Diagram). A capture register and a fast
decrement mode are also provided. It is offered in 40-pin
PDIP, 44-pin PLCC, 44-pin QFP, and 48-pin VQFP pack-
ages. The Z86C93 is functionally compatible with the
Z86C91, yet it offers a more powerful mathematical capa-
bility. In the PDIP package, the Z86C93 is fully pin compat-
ible with the Z86C91. In the PLCC package, the Z86C93 is
also pin compatible to the Z86C91, with the addition of four
signals (SCLK, /IACK, /SYNC, and /WAIT). The /WAIT
signal is only available on the 25 MHz and 33 MHz devices.
The Z86C93 provides up to 16 output address lines permit-
ting an address space of up to 64 Kbytes of data and
program memory each. Eight address outputs (AD7-AD0)
are provided by a multiplexed, 8-bit, Address/Data bus.
The remaining 8 bits can be provided by the software
configuration of Port 0 to output address bits A15-A8.
Z86C93
CMOS Z8® MULT/DIV
MICROCONTROLLER
There are 256 registers located on chip and organized as
236 general-purpose registers, 16 control and status reg-
isters, one reserved register, and up to three I/O port
registers. The register file can be divided into 16 groups of
16 working registers each. Configuration of the registers in
this manner allows the use of short format instructions; in
addition, any of the individual registers can be accessed
directly. There are an additional 17 registers implemented
in the Expanded Register File in Banks D and E. Two of the
registers may be used as general-purpose registers, while
15 registers supply the data and control functions for the
Multiply/Divide Unit and additional Counter/Timer blocks.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.:
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection
Circuit
Device
Power
Ground
VCC
GND
VDD
V
SS
DC-4020-12 (2-16-94)
1
Page 1

GENERAL DESCRIPTION (Continued)
Z86C93
CPS DC-4020-12
Output Input
Port 3
UART
Three 16-Bit
Counter/Timers
32 ÷ 16
Divider
16 x 16
Multiplier
Interrupt
Control
VCC GND
ALU
FLAGS
Register
Pointer
Register File
256 x 8-Bit
Machine Timing, Emulation
and Instruction Control
Program
Counter
Port 2
I/O
(Bit Programmable)
Port 0
Port 1
44
Address or I/O
(Nibble Programmable)
8
Address/Data
Functional Block Diagram
2
Page 2

PIN CONFIGURATION
VCC
XTAL2
XTAL1
P37
P30
/RESET
R//W
/DS
/AS
P35
GND
P32
P00
P01
P02
P03
P04
P05
P06
P07
1
2
3
4
5
6
7
8
9
Z86C93
10 DIP
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
P36
P31
P27
P26
P25
P24
P23
P22
P21
P20
P33
P34
P17
P16
P15
P14
P13
P12
P11
P10
40-Pin DIP Package
(20 MHz)
Z86C93
CPS DC-4020-12
/RESET
R//W
/DS
/AS
P35
GND
P32
P00
P01
P02
IACK
6 5 4 3 2 1 44 43 42 41 40
7 39
8 38
9 37
10 36
11 Z86C93
12 MCU
13
35
34
33
14 32
15 31
16 30
17 29
18 19 20 21 22 23 24 25 26 27 28
NC
P24
P23
P22
P21
P20
P33
P34
P17
P16
P15
44-Pin PLCC Package
(20 MHz)
P25
P26
P27
P31
P36
+5V
XTAL2
XTAL1
P37
P30
SCLK
33 32 31 30 29 28 27 26 25 24 23
34 22
35 21
36 20
37 19
38 Z86C93
18
39 MCU
17
40 16
41 15
42 14
43 13
44 12
1 2 3 4 5 6 7 8 9 10 11
/SYNC P25
P14 P26
P13 P27
P31
P12
P36
P11
NC
P10 +5V
P07 XTAL2
P06 XTAL1
P05 P37
P04 P30
P03 SCLK
36 35 34 33 32 31 30 29 28 27 26 25
37 24
38 23
39 22
40 21
41
42 Z86C93
43 MCU
20
19
18
44 17
45 16
46 15
47 14
48 13
1 2 3 4 5 6 7 8 9 10 11 12
/SYNC
P14
P13
P12
P11
P10
P07
NC
P06
P05
P04
P03
44-Pin QFP Package
(20 MHz)
48-Pin VQFP Package
(20 MHz)
3
Page 3
Part Number Z86C93
Manufactur Zilog.
Description CMOS Z8 MULT/DIV MICROCONTROLLER
Total Page 13 Pages
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