HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 130

• Manufacturer Part Number: HD6473834HV
• Description: MCU 5V 32K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473834HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 71
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.3
The write, verify, and other modes are selected as shown in table 6.3 in H8/3834 PROM mode.
Table 6.3
Mode
Write
Verify
Programming disabled
Notation:
L:
H:
V
V
The specifications for writing and reading the on-chip PROM are identical to those for the
standard HN27C256 EPROM.
6.3.1
An efficient, high-performance programming method is available for writing and verifying the
PROM data. This method achieves high speed without voltage stress on the device and without
lowering the reliability of written data. H'FF data is written in unused address areas.
The basic flow of this high-performance programming method is shown in figure 6.4. Table 6.4
and table 6.5 give the electrical characteristics in programming mode. Figure 6.5 shows a
write/verify timing diagram.
PP
CC
: V
: V
Low level
High level
PP
CC
level
level
H8/3834 Programming
Writing and Verifying
Mode Selection in H8/3834 PROM Mode
CE
L
H
H
OE
H
L
H
Pin
V
V
V
V
PP
PP
PP
PP
V
V
V
V
CC
CC
CC
CC
EO
Data input
Data output
High impedance
7
to EO
0
EA
Address input
Address input
Address input
14
to EA
0
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