DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 653
![MCU RISC FLASH 32K 8K 64LQFP](/photos/28/61/286100/64-lqfp__plqp0064kb-a_sml.jpg)
DF71251AD50FPV
Manufacturer Part Number
DF71251AD50FPV
Description
MCU RISC FLASH 32K 8K 64LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH Tinyr
Datasheet
1.DF71243N50FPV.pdf
(794 pages)
Specifications of DF71251AD50FPV
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
SCI
Peripherals
POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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• Communications protocol
Formats in the communications protocol between the host and boot program after completion of
the bit-rate matching are as follows.
1. One-character command or one-character response
2. n-character command or n-character response
3. Error response
4. 128-byte programming command
5. Response to a memory reading command
A command or response consisting of a single character used for an inquiry or the ACK code
indicating normal completion.
A command or response that requires n bytes of data, which is used as a selection command or
response to an inquiry. The length of programming data is treated separately below.
Response to a command in case of an error: two bytes, consisting of the error response and
error code.
The command itself does not include data-size information. The data length is known from the
response to the command for inquiring about the programming size.
This response includes four bytes of size information.
Host
Figure 17.16 Sequence of Bit-Rate Matching
H'00 (bit rate matching complete)
H'00 (max. 30 times)
H'E6 (response)
H'FF (error)
H'55
Rev. 5.00 Mar. 06, 2009 Page 633 of 770
length of one bit
Measures the
Boot program
REJ09B0243-0500
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