HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 152
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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For CPU write cycles and DMAC dual mode write cycles to external memory space, the number
of states and wait state insertion cannot be controlled by WCR1. In areas 1, 3, 4, 5, and 7, the
WAIT signal is sampled and the number of states is 2 plus the number of wait states in the WAIT
signal (figure 8.13). In areas 0, 2 and 6, the number of states is 1 state plus the number of long
wait states plus the number of wait states in the WAIT signal (figure 8.14). Never write 0 in bits
7–2 and 0 of WCR1; only write 1. When area 1 is being used as external memory space, never
write 0 to bit 1 (WW1); always write 1.
132 RENESAS
Figure 8.14 Wait State Timing for External Memory Space Access (1 state plus long wait
Write
Read
WRH, WRL
AD15–AD0
AD15–AD0
state (when set to insert 3 states) plus wait states from WAIT signal)
A21–A0
WAIT
CSn
RD
CK
T1
T
LW1
set in WCR3
Wait states
T
LW2
signal input
from WAIT
Wait state
T
W
states set
in WCR3
T
Wait
LW3
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