HD64F3642AH Renesas Electronics America, HD64F3642AH Datasheet - Page 175

• Manufacturer Part Number: HD64F3642AH
• Description: IC H8 MCU FLASH 16K 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3642AH

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

High-Speed, High-Reliability Programming: Unused areas of the flash memory in the
H8/3644F, H8/3643F, or H8/3642AF contain H'FF data (initial value). The flash memory uses a
high-speed, high-reliability programming procedure. This procedure provides higher programming
speed without subjecting the device to voltage stress and without sacrificing the reliability of the
programmed data.
Figure 6.18 shows the basic high-speed, high-reliability programming flowchart. Tables 6.15 and
6.16 list the electrical characteristics during programming.
Address + 1
Figure 6.18 High-Speed, High-Reliability Programming
address
No
Program-verify command
Program setup command
Set V
Program command
Set V
Last address?
PP
Address = 0
Wait (25 s)
Wait (6 s)
n + 1
= 12.0 V ±0.6 V
Verify?
n = 0
Start
End
PP
= V
OK
Yes
n
CC
Rev. 6.00 Sep 12, 2006 page 153 of 526
NG
n = 20?
Error
Yes
REJ09B0326-0600
Section 6 ROM
No