HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 115
HD6477021X20V
Manufacturer Part Number
HD6477021X20V
Description
MCU 5V 32K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6477021X20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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8.1.3
Table 8.1 shows the BSC pin configuration.
Table 8.1
Name
Chip select 7–0
Read
High write
Low write
Write
High byte strobe
Low byte strobe
Row address strobe
High column
address strobe
Low column address
strobe
Address hold
Wait
Address bus
Data bus
Data bus parity high
Data bus parity low
Notes: 1. Doubles with the WRL pin. (Selected by the BAS bit of the BCR. See section 8.2.1, Bus
8.1.4
The BSC has ten registers (listed in table 8.2) which control space division, wait states, DRAM
interface, and parity check.
2. Doubles with the A0 pin. (Selected by the BAS bit of the BCR. See section 8.2.1, Bus
3. Doubles with the WRH pin. (Selected by the BAS bit of the BCR. See section 8.2.1, Bus
Pin Configuration
Register Configuration
Control Register, for details.
Control Register, for details.
Control Register, for details.
Pin Configuration
Abbreviation
CS7–CS0
RD
WRH
WRL
WR*
HBS*
LBS*
RAS
CASH
CASL
AH
WAIT
A21–A0
AD15–AD0
DPH
DPL
1
3
2
I/O Function
O
O
O
O
O
O
O
O
O
O
O
I
O
I/O Data I/O. During address/data multiplexing, address
I/O Parity data I/O for upper byte
I/O Parity data I/O for lower byte
Chip select signal that indicates the area being
accessed
Strobe signal that indicates the read cycle
Strobe signal that indicates write cycle to upper 8 bits
Strobe signal that indicates write cycle to lower 8 bits
Strobe signal that indicates write cycle
Strobe signal that indicates access to upper 8 bits
Strobe signal that indicates access to lower 8 bits
DRAM row address strobe signal
Column address strobe signal for accessing the
upper 8 bits of the DRAM
Column address strobe signal for accessing the lower
8 bits of the DRAM
Signal for holding the address for address/data
multiplexing
Wait state request signal
Address output
output and data input/output.
RENESAS 95
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