UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 231

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Caution 1. When using the main clock or subclock oscillator, wire as follows in the area enclosed by the
Figure 6-4 shows examples of incorrect resonator connections.
Remark For the subsystem clock, read X1 and X2 as XT1 and XT2. Note that a resistor must be
broken lines in Figures 6-2 and 6-3 to avoid an adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the other signal lines.
• Do not route the wiring near a signal line through which a high fluctuating current flows.
• Always make the ground point of the oscillator capacitor the same potential as V
• Do not ground the capacitor to a ground pattern through which a high current flows.
• Do not fetch signals from the oscillator.
The subclock oscillator is designed as a low-amplitude circuit for reducing power
consumption. Particular care is therefore required with the wiring method when the subclock
is used.
(a) The wiring is too long.
inserted in series on the XT2 side.
V
Figure 6-4. Examples of Incorrect Resonator Connections (1/2)
SS
X1
CHAPTER 6 CLOCK GENERATOR
X2
User’s Manual U18953EJ5V0UD
(b) The wiring crosses other signal lines.
V
SS
X1
PORT
X2
SS
.
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