M38869FFAHP Renesas Electronics America, M38869FFAHP Datasheet - Page 67

• Manufacturer Part Number: M38869FFAHP
• Description: IC 740 MCU FLASH 61K 80LQFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38869FFAHP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 64
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

FLASH MEMORY MODE
The M38869FFAHP/GP has the flash memory mode in addition to
the normal operation mode (microcomputer mode). The user can
use this mode to perform read, program, and erase operations for
the internal flash memory.
The M38869FFAHP/GP has three modes the user can choose:
the parallel input/output and serial input/output mode, where the
flash memory is handled by using the external programmer, and
the CPU reprogramming mode, where the flash memory is
handled by the central processing unit (CPU). The following ex-
plains these modes.
(1) Flash memory mode 1 (parallel I/O mode)
The parallel I/O mode can be selected by connecting wires as
shown in Figures 65 and supplying power to the V
pins. In this mode, the M38869FFAHP/GP operates as an equiva-
lent of MITSUBISHI’s CMOS flash memory M5M28F101.
However, because the M38869FFAHP/GP’s internal memory has
a capacity of 60 Kbytes, programming is available for addresses
01000
00000
Note also that the M38869FFAHP/GP does not contain a facility to
read out a device identification code by applying a high voltage to
address input (A9). Be careful not to erratically set program condi-
tions when using a general-purpose PROM programmer.
Table 18 shows the pin assignments when operating in the paral-
lel input/output mode.
Table 18
64
Table 19 Assignment sates of control input and each state
Note:
Mode
Address input
Read/Write
Read-only
Data I/O
16
16
V
___
V
V
___
WE
can be V
CE
OE
__
to 00FFF
CC
PP
SS
to 0FFFF
operating in the parallel input/output mode
Pin assignments of M38869FFAHP/GP when
IL
Read
Output disable
Standby
Read
Output disable
Standby
Write
or V
16
State
16
and addresses 10000
, and make sure that the data in addresses
IH
M38869FFAHP/GP
Ports P0, P1, P3
.
Port P2
CNV
V
V
P3
P3
P3
CC
SS
6
7
3
SS
Pin
1
16
to 1FFFF
M5M28F101
CE
V
V
V
V
V
V
V
__
IH
IH
IL
IL
IL
IL
IL
A
D
0
V
V
V
___
WE
0
OE
CE
__
__
–A
–D
CC
CC
PP
SS
16
16
7
are FF
and V
16
PP
.
OE
V
V
V
__
V
V
IL
IH
IL
IH
IH
Functional Outline (parallel input/output mode)
In the parallel input/output mode, the M38869FFAHP/GP allow the
user to choose an operation mode between the read-only mode
and the read/write mode (software command control mode) de-
pending on the voltage applied to the V
the read-only mode is selected, and the user can choose one of
three states (e.g., read, output disable, or standby) depending on
inputs to the CE, OE, and WE pins. When V
write mode is selected, and the user can choose one of four states
(e.g., read, output disable, standby, or write) depending on inputs
to the CE, OE, and WE pins. Table 19 shows assignment states of
control input and each state.
The microcomputer enters the read state by driving the CE, and
OE pins low and the WE pin high; and the contents of memory
corresponding to the address to be input to address input pins
(A
are output to the data input/output pins (D
The microcomputer enters the output disable state by driving the
CE pin low and the WE and OE pins high; and the data input/out-
put pins enter the floating state.
The microcomputer enters the standby state by driving the CE pin
high. the M38869FFAHP/GP is placed in a power-down state con-
suming only a minimal supply current. At this time, the data input/
output pins enter the floating state.
The microcomputer enters the write state by driving the V
high (V
low and the OE pin is high. In this state, software commands can
be input from the data input/output pins, and the user can choose
program or erase operation depending on the contents of this soft-
ware command.
__
__
0
Read
Output disable
Standby
Write
–A
16
__
PP
).
= V
__
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
__
___ ___
PP
___
WE
V
V
V
V
V
H) and then the WE pin low when the CE pin is
IH
IH
IH
IH
IL
___
___
MITSUBISHI MICROCOMPUTERS
___
___
__
___
V
V
V
V
V
V
V
V
PP
PP
PP
PP
PP
PP
PP
PP
H
H
H
H
L
L
L
PP
0
3886 Group
–D
pin. When V
PP
7
).
= V
PP
Data I/O
Floating
Floating
Floating
Floating
Output
Output
H, the read/
Input
PP
__
__
= V
__
PP
PP
pin
L,