Oki MSM66591, User Manual

Page: 20 / 466

1-1
MSM66591/ML66592 User's Manual
Chapter 1 Overview
1
1. Overview
The MSM66591/ML66592 are high performance 16-bit microcontrollers that contain a 16-bit
CPU (nX-8/500S), ROM, RAM, a 10-bit A/D converter, serial ports, flexible timers, and
PWMs.
The ML66592 is the same as the MSM66591 with the exception that the ML66592 has an
increased ROM and RAM capacity and a higher operating speed. Table 1-1 lists the func-
tional differences between the MSM66591 and ML66592.
The MSM66Q591 is a Flash EEPROM version of the MSM66591. The ML66Q592 is a Flash
EEPROM version of the ML66592.
Modifications in
ML66592/ML66Q592 and notes
Operating frequency
(internal) Increased by 4 MHz (with
increased supply current)
20 to 24 MHz 20 to 28 MHz
Program memory space
Operating temperature –40 to +115
°
C –40 to +95
°
C Changed from +115
°
C to +95
°
C
Increased by 64K bytes
(internal) (SEG2)
Increased by 128K bytes
(external) (SEG2, 3)
External A17 output (P12_1)
has been added.
(When
EA
= "L")
192K bytes (internal)
256K bytes (external)
0:0000H to 3:FFFFH
128K bytes
0:0000H to 1:FFFFH
6K bytes
200H to 19FFH
8K bytes
200H to 21FFH
6K bytes
200H to 19FFH
8K bytes
0200H to 21FFH
192K bytes
0:0000H to 2:FFFFH
128K bytes
0:0000H to 1:FFFFH
Increased by 2K bytes
(1A00H to 21FFH)
Increased by 2K bytes
(1A00H to 21FFH)
…
Changed from 2000H to 3000H
Increased by 64K bytes (SEG2)
One valid bit has been added
to each of CSR and TSR.
Access forbidden to the
internal SEG3.
2000H
4000H
8000H
1/2 CLK (12 MHz)
1/4 CLK (6 MHz)
1/8 CLK (3 MHz)
1/16 CLK (1.5 MHz)
2/3 CLK (16 MHz)
1/3 CLK (8 MHz)
512 CLK (21.3
µ
s)
384 CLK (16
µ
s)
256 CLK (10.7
µ
s)
1/4 CLK (6 MHz*)
1/8 CLK (3 MHz)
1/16 CLK (1.5 MHz)
512 CLK (18.3
µ
s)
384 CLK (13.7
µ
s)
256 CLK (9.1
µ
s)
Not provided
1/8 CLK (3.5 MHz)
1/16 CLK (1.75 MHz)
1/2 CLK (14 MHz)
1/4 CLK (7 MHz)
1/8 CLK (3.5 MHz)
1/16 CLK (1.75 MHz)
2/3 CLK (forbidden)
1/3 CLK (9.3 MHz)
3000H
4000H
8000H
…
Use of 2/3 CLK is forbidden.
ML66592/66Q592 MSM66591/66Q591 Item
Data memory space
Internal ROM capacity
Internal RAM capacity
Starting address for the
ROM Window function
CLKOUT function
(Values in parentheses are
output frequencies of the
device operating at the
maximum frequency)
(Values in parentheses are
conversion time when the
device is operating at the
maximum frequency)
Transfer clock during
Flash ROM reprogramming
in the user mode
(MSM66Q591/ML66Q592 only)
…
Should be used at 16
m
s or more
…
1/4 CLK has been deleted.
10-bit A/D converter
conversion time
* 6 MHz is outside the guarantee
range.
Note: In the ML66592/66Q592, the AC characteristics during external program memory access apply
only when the internal operating frequency is not more than 24 MHz.
Table 1-1 Differences between MSM66591/66Q591 and ML66592/66Q592 Specifications