HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 903

• Manufacturer Part Number: HD64F2638F20J
• Description: IC H8S MCU FLASH 256K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2638F20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
21C.4 Flash Memory Overview
21C.4.1 Features
The H8S/2635 has 192 kbytes of on-chip flash memory, or 192 kbytes or 128 kbytes of on-chip
mask ROM. The features of the flash memory are summarized below.
• Four flash memory operating modes
• Programming/erase methods
• Programming/erase times
• Reprogramming capability
• On-board programming modes
• Automatic bit rate adjustment
• Flash memory emulation in RAM
• Protect modes
REJ09B0103-0800 Rev. 8.00
May 28, 2010
⎯ Program mode
⎯ Erase mode
⎯ Program-verify mode
⎯ Erase-verify mode
The flash memory is programmed 128 bytes at a time. Block erase (in single-block units) can
be performed. To erase the entire flash memory, each block must be erased in turn. Block
erasing can be performed as required on 4 kbytes, 32 kbytes, and 64 kbytes blocks.
The flash memory programming time is 10 ms (typ.) for simultaneous 128-byte programming,
equivalent to 80 µs (typ.) per byte, and the erase time is 100 ms (typ.).
The flash memory can be reprogrammed up to 100 times.
There are two modes in which flash memory can be programmed/erased/verified on-board:
⎯ Boot mode
⎯ User program mode
With data transfer in boot mode, the LSI’s bit rate can be automatically adjusted to match the
transfer bit rate of the host.
Flash memory programming can be emulated in real time by overlapping a part of RAM onto
flash memory.
There are three protect modes, hardware, software, and error protection, which allow protected
status to be designated for flash memory program/erase/verify operations.
Section 21C ROM
(H8S/2635 Group)
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