HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 440

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

t
OPW
V
V
t
PW
CC
PP
Figure 16.4 Basic Flowchart of High-Speed High-Reliability Programming
No good
: Power supply
: PROM program power supply
: Initial programming pulse width
: Over programming pulse width
Yes
n = 25?
No
No
No
(V
(V
V
Set EPROM writer to
(t
(t
writer to read mode
reading all address
PP
OPW
CC
CC
write/verify mode
PW
= 12.5 V
Set EPROM
Address = 0
= 6.0 V
= 5.0 V
V
result OK?
= 0.2 ms
Data write
Data write
Results of
n + 1
address?
= (0.2
PP
Verify
Start
n = 0
Final
OK?
End
= V
Yes
Yes
Yes
CC
n
0.25 V,
0.25 V,
n) ms)
0.3 V)
)
5%)
No
Address + 1
Address
RENESAS 425