HD6473937RXV Renesas Electronics America, HD6473937RXV Datasheet - Page 143

• Manufacturer Part Number: HD6473937RXV
• Description: MCU 3/5V 60K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD6473937RXV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 59
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

6.4
Reliability of Programmed Data
A highly effective way to improve data retention characteristics is to bake the programmed chips
at 150 C, then screen them for data errors. This procedure quickly eliminates chips with PROM
memory cells prone to early failure.
Figure 6-6 Shows the recommended screening procedure.
Program chip and verify
programmed data
Bake chip for 24 to 48 hours at
125 C to 150 C with power off
Read and check program
Install
Figure 6-6 Recommended Screening Procedure
If a series of programming errors occurs while the same PROM programmer is in use, stop
programming and check the PROM programmer and socket adapter for defects. Please inform
Hitachi of any abnormal conditions noted during or after programming or in screening of program
data after high-temperature baking.
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