HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 443

• 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: -

16.3.3
1. Always write using the prescribed voltage and timing. The write voltage (programming
2. Before programming, always check that the indexes of the EPROM writer socket, socket
3. Do not touch the socket adapter or device during writing. Contact can cause malfunctions that
428 RENESAS
Note: t
V
V
voltage) V
HN27C101, V
damage the device. Pay particular attention to overshooting in the EPROM writer.
adapter, and devices are consistent with each other. If they are not mounted in the proper
location, an overcurrent may be generated, damaging the device.
prevent data from being written accurately.
CC
PP
Address
V
Points to Note About Writing
CC
PGM
OPW
Data
V
V
V
OE
+ 1
CE
CC
CC
PP
PP
is defined as the value given in the flowchart.
is 12.5 V (when the EPROM writer is set to the Hitachi specifications for
PP
becomes 12.5 V.) Applying a voltage in excess of the rated voltage may
t
t
t
t
t
VPS
VCS
CES
AS
DS
Figure 16.5 Write/Verify Timing
(t
Write data
OPW
t
PW
)
Write
t
DH
t
OES
t
OE
Read data
Verify
t
t
DF
AH