HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 434

• 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: -

Section 16 ROM
16.1
Overview
The SH7020 microcomputer has 16 kbytes of on-chip ROM (mask ROM). The SH7021
microcomputer has 32 kbytes of on-chip ROM (mask ROM or PROM). The on-chip ROM is
connected to the CPU and the direct memory access controller (DMAC) through a 32-bit data bus
(figure 16.1). The CPU can access the on-chip ROM in 8-, 16- and 32-bit widths and the DMAC
can access the ROM in 8- and 16-bit widths. Data in the on-chip ROM can always be accessed in
one cycle.
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