Z86E4316VSC View Datasheet(PDF) - Zilog
Part Name
Description
MFG CO.
'Z86E4316VSC' PDF : 84 Pages View PDF
CMOS Z8® OTP Microcontrollers
Product Specification
47
65535
4096/8192/16384
4095/8191/16383
Location of
First Byte of
Instruction
Executed
After RESET 12
11
10
9
8
Interrupt 7
Vector
(Lower Byte)
6
5
Interrupt 4
Vector
(Upper Byte)
3
2
1
0
ROM Module
External
ROM and RAM
On-Chip
EPROM
ROMLess Module
External
ROM and RAM
IRQ5
IRQ5
IRQ4
IRQ4
IRQ3
IRQ3
IRQ2
IRQ2
IRQ1
IRQ1
IRQ0
IRQ0
IRQ5
IRQ5
IRQ4
IRQ4
IRQ3
IRQ3
IRQ2
IRQ2
IRQ1
IRQ1
IRQ0
IRQ0
(Z86E43/743/E44 Only)
Figure 22. Program Memory Map
EPROM Protect. When in ROM Protect Mode, and executing out of External Program
Memory, instructions LDC, LDCI, LDE, and LDEI cannot read Internal Program Mem-
ory.
When in EPROM Protect Mode and executing out of Internal Program Memory, instruc-
tions LDC, LDCI, LDE, and LDEI can read Internal Program Memory.
Data Memory (DM). In ROM Mode, the Z86E43/743/E44 can address up to 60156/48
KB of external data memory beginning at location 4096/8192/16384. In ROMless mode,
the Z86E43/743/E44 can address up to 64 KB of data memory. External data memory may
be included with, or separated from, the external program memory space. DM, an optional
I/0 function that can be programmed to appear on pin P34, is used to distinguish between
data and program memory space (Figure 23). The state of the DM signal is controlled by
the type of instruction being executed. An LDC opcode references PROGRAM (DM inac-
tive) memory, and an LDE instruction references data (DM active Low) memory.
PS022901-0508
Electrical Characteristics
Share Link: 
