D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 595

• Manufacturer Part Number: D12312SVTE25
• Description: MCU 3V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412312SVTE25; HD6412312SVTE25

16.1
The chip has on-chip high-speed static RAM. The RAM is connected to the CPU by a 16-bit data
bus, enabling one-state access by the CPU to both byte data and word data. This makes it possible
to perform fast word data transfer.
The on-chip RAM can be enabled or disabled by means of the RAM enable bit (RAME) in the
system control register (SYSCR).
Note: The amount of on-chip RAM is 16 kbytes in the H8S/2319C, 8 kbytes in the H8S/2319,
16.1.1
Figure 16.1 shows a block diagram of 8 kbytes of on-chip RAM.
H8S/2318, H8S/2317, H8S/2317S, H8S/2316S, H8S/2315, and H8S/2312S, 4 kbytes in
the H8S/2314.
Overview
Block Diagram
Figure 16.1 Block Diagram of RAM (8 kbytes)
H'FFDC00
H'FFDC02
H'FFDC04
H'FFFBFE
Section 16 RAM
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'FFDC01
H'FFDC03
H'FFDC05
Rev.7.00 Feb. 14, 2007 page 561 of 1108
H'FFFBFF
REJ09B0089-0700
Section 16 RAM