参数资料
型号: MPC8343EVRAGDB
厂商: Freescale Semiconductor
文件页数: 2/80页
文件大小: 0K
描述: IC MPU POWERQUICC II 620-PBGA
标准包装: 36
系列: MPC83xx
处理器类型: 32-位 MPC83xx PowerQUICC II Pro
速度: 400MHz
电压: 1.2V
安装类型: 表面贴装
封装/外壳: 620-BBGA 裸露焊盘
供应商设备封装: 620-PBGA(29x29)
包装: 托盘
MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
10
Freescale Semiconductor
Power Characteristics
supplies are stable and if the I/O voltages are supplied before the core voltage, there may be a period of
time that all input and output pins will actively be driven and cause contention and excessive current from
3A to 5A. In order to avoid actively driving the I/O pins and to eliminate excessive current draw, apply the
core voltage (VDD) before the I/O voltage (GVDD, LVDD, and OVDD) and assert PORESET before the
power supplies fully ramp up. In the case where the core voltage is applied first, the core voltage supply
must rise to 90% of its nominal value before the I/O supplies reach 0.7 V, see Figure 4.
Figure 4. Power Sequencing Example
I/O voltage supplies (GVDD, LVDD, and OVDD) do not have any ordering requirements with respect to one
another.
3
Power Characteristics
The estimated typical power dissipation for the MPC8343EA device is shown in Table 4.
l
Table 4. MPC8343EA Power Dissipation1
1 The values do not include I/O supply power (OV
DD, LVDD, GVDD) or AVDD. For I/O power values, see Table 5.
Core
Frequency
(MHz)
CSB
Frequency
(MHz)
Typical at TJ = 65
Typical2
,3
2 Typical power is based on a voltage of V
DD = 1.2 V, a junction temperature of TJ = 105°C, and a Dhrystone benchmark
application.
3 Thermal solutions may need to design to a value higher than typical power based on the end application, T
A target, and I/O
power.
Maximum4
4 Maximum power is based on a voltage of V
DD = 1.2 V, worst case process, a junction temperature of TJ = 105°C, and an
artificial smoke test.
Unit
PBGA
266
1.3
1.6
1.8
W
133
1.1
1.4
1.6
W
400
266
1.5
1.9
2.1
W
133
1.4
1.7
1.9
W
400
200
1.5
1.8
2.0
W
100
1.3
1.7
1.9
W
I/O Voltage (GVDD, LVDD, OVDD)
Core Voltage (VDD, AVDD)
90%
0.7 V
Time
Voltage
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