HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 488

• 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: -

Table 19.8 Bus Timing (3) (cont)
Conditions: V
*: Normal products. Ta = –40 to +85 C for wide-temperature range products
Item
DACK0, DACK1 delay time 1 t
DACK0, DACK1 delay time 2 t
DACK0, DACK1 delay time 3 t
DACK0, DACK1 delay time 4 t
DACK0, DACK1 delay time 5 t
Read delay time 35% duty
Data setup time for CAS
CAS setup time for RAS
Row address hold time
Write command hold time
Write command 35% duty
setup time
Access time from CAS
precharge
Notes: 1. When frequency is 10 MHz or more.
RENESAS 476
2. n is the number of wait cycles.
3. –5 ns for parity output of DRAM long-pitch access
4. It is not necessary to meet the t
*4
specification is met.
CC
= 3.0 to 5.5 V, V
50% duty
50% duty
*1
*1
Symbol Min Max
t
t
t
t
t
t
t
t
DACD1
DACD2
DACD3
DACD4
DACD5
RDD
DS
CSR
RAH
WCH
WCS
WCS
ACP
SS
= 0 V, = 12.5 MHz, Ta = –20 to +75 C*
—
—
—
—
—
—
—
0*
10
10
15
0
0
tcyc
-20
3
RDS
40
40
40
40
40
t
t
—
—
—
—
—
—
—
cyc
cyc
specification as long as the access time
0.35 + 35
0.5 + 35
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figures
19.21, 19.22, 19.24–
19.27, 19.32, 19.33
19.22, 19.26, 19.27,
19.32
19.24, 19.25
19.21, 19.22, 19.24-
19.28, 19.32
19.24, 19.26
19.29–19.31
19.24, 19.26
19.24
19.25