SPEAR320-2 STMicroelectronics, SPEAR320-2 Datasheet - Page 45

• 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
6.3
6.4
Note:
3. The maximum current and power values listed above, obtained with typical supply voltages, are not
DC electrical characteristics
The recommended operating conditions are listed in the following table:
Table 17.
Overshoot and undershoot
This product can support the following values of overshoot and undershoot.
Table 18.
If the amplitude of the overshoot/undershoot increases (decreases), the ratio of
overshoot/undershoot width to the pulse width decreases (increases). The formula relating
the two is:
Amplitude of OS/US = 0.75*(1- ratio of OS (or US) duration with respect to pulse width)
The value of overshoot/undershoot should not exceed the value of 0.5 V. However, the
duration of the overshoot/undershoot can be increased by decreasing its amplitude.
Ratio of overshoot (or undershoot) duration with respect to
pulse width
V
Symbol
guaranteed to be the highest obtainable. These values are dependent on many factors including the type of
applications running, clock rates, use of internal functional capabilities, external interface usage, case
temperature, and the power supply voltages. Your specific application can produce significantly different
results.
1.2 V current and power are primarily dependent on the applications running and the use of internal chip
functions (DMA, USB, Ethernet, and so on).
3.3 V current and power are primarily dependent on the capacitive loading, frequency, and utilization of the
external buses.
V
V
V
V
V
DD
DD
DD
DD
DD
DD
T
RTC
C
1.8
1.2
3.3
2.5
2.5
Recommended operating conditions
Overshoot and undershoot specifications
Supply voltage for DRAM interface
Supply voltage for the core
Supply voltage for the I/Os
Parameter
Oscillator supply voltage
Amplitude
Operating temperature
RTC supply voltage
PLL supply voltage
Parameter
Doc ID 16755 Rev 4
1.14
2.25
2.25
1.70
Min
3V3 I/Os
1.3
-40
500 mV
3
1/3
Electrical characteristics
Typ
1.2
3.3
2.5
2.5
1.8
1.5
2V5 I/Os
500 mV
1/3
2.75
2.75
Max
1.3
3.6
1.9
1.8
85
1V8 I/Os
500 mV
1/3
Unit
°C
45/76
V
V
V
V
V
V