SPEAR320-2 STMicroelectronics, SPEAR320-2 Datasheet - Page 25

• Manufacturer Part Number: SPEAR320-2
• Description: IC MPU ARM9 289LFBGA
• Manufacturer: STMicroelectronics
• Series: SPEAr®r

Specifications of SPEAR320-2

• Processor Type: ARM Microprocessor
• Speed: 333MHz
• Voltage: 1.14 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 289-LFBGA
• Processor Series: SPEAr320
• Core: ARM926EJ-S
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 333 MHz
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Data Ram Size: 8 KB
• Interface Type: I2C, UART, USB, Serial
• Number Of Programmable I/os: 102
• Number Of Timers: 4
• Program Memory Size: 32 KB
• Program Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-10843

SPEAr320
4
4.1
4.2
Pin description
The following tables describe the pinout of the SPEAr320 listed by functional block.
List of abbreviations:
PU = Pull Up
PD = Pull Down
Required external components
1.
2.
3.
Dedicated pins
Table 2.
Table 3.
Master Clock
3.3 V Comp.
GROUND
DIGITAL
Group
Group
Reset
DDR_COMP_1V8: place an external 121 kresistor between ball P4 and ball R4
USB_TX_RTUNE: connect an external 43.2 k pull-down resistor to ball K5
DIGITAL_REXT: place an external 121 k resistor between ball G4 and ball F4.
RTC
Master clock, RTC, Reset and 3.3 V comparator pin descriptions
Power supply pin description
DIGITAL_GNDBG
DIGITAL_REXT
USB_HOST1_HOST0_DEVICE_DVSS
Signal name
MCLK_XO
MCLK_XI
MRESET
RTC_XO
RTC_XI
COMP
Signal name
Doc ID 16755 Rev 4
GND
Ball
M17
G4
P1
P2
E2
E1
F4
Direction
Output
Output
Output
Power
Input
Input
Input
G6 G7 G8 G9 G10 G11 H6
J8 J9 J10 J11 K6 K7 K8 K9
32 kHz crystal out
H7 H8 H9 H10 H11 J6 J7
K10 K11 L6 L7 L8 L9 L10
32 kHz crystal in
24 MHz (typical)
24 MHz (typical)
Configuration
Main Reset
crystal out
Function
crystal in
Power
M8 M9 M10
Ball
L5
Pin description
Oscillator 2.5 V
Oscillator 1V5
Analog, 3.3 V
TTL Schmitt
trigger input
buffer, 3.3 V
tolerant, PU
Pin type
capable
capable
capable
Power
Value
0 V
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