R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 39

• Manufacturer Part Number: R8A77850ANBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850ANBGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Item
DDR2-SDRAM bus
controller (DBSC)
Features
•
•
•
•
•
A dedicated DDR2-SDRAM bus interface
⎯ Multi-bank support: Supports multi-bank (four banks) operation
⎯ Number of banks: Supports four or eight banks (however, no more
⎯ Selectable bus width: 32-/16-bit
⎯ Supports preceding precharging and activation
⎯ Burst length: Four (fixed)
⎯ Burst type: Sequential (fixed)
⎯ CAS latency: 2, 3, 4, 5, 6 cycles
Auto-refresh mode
⎯ An average interval is selectable by a register setting. Preceding
Self-refresh mode
Connectable memory capacity: Up to 1 Gbyte
⎯ With a 32-bit bus width
⎯ With a 16-bit bus width
Big or little endian is selectable
than four banks can be opened concurrently)
refresh operations are performed when there are no pending
requests.
16 M x 16 bits (256 Mbits) x 2, 32 M x 16 bits (512 Mbits) x 2, 64 M x
16 bits (1 Gbit) x 2, 128 M x 16 bits (2 Gbits) x 2, 32 M x 8 bits (256
Mbits) x 4, 64 M x 8 bits (512 Mbits) x 4, 128 M x 8 bits (1 Gbit) x 4,
256 M x 8 bits (2 Gbits) x 4
16 M x 16 bits (256 Mbits) x 1, 32 M x 16 bits (512 Mbits) x 1, 64 M x
16 bits (1 Gbit) x 1, 128 M x 16 bits (2 Gbits) x 1, 32 M x 8 bits (256
Mbits) x 2, 64 M x 8 bits (512 Mbits) x 2, 128 M x 8 bits (1 Gbit) x 2,
256 M x 8 bits (2 Gbits) x 2
Rev.1.00 Jan. 10, 2008 Page 7 of 1658
REJ09B0261-0100
1. Overview