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| 型號： | KMC7448VU1400NC |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 10/60頁 |
| 文件大小： | 0K |
| 描述： | IC MPU 128BIT 1400MHZ 360-FCCBGA |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | MPC74xx |
| 處理器類型： | 32-位 MPC74xx PowerPC |
| 速度： | 1.4GHz |
| 電壓： | 1.15V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 360-CBGA，F(xiàn)CCBGA |
| 供應(yīng)商設(shè)備封裝： | 360-FCCBGA（25x25） |
| 包裝： | 托盤 |
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MPC7448 RISC Microprocessor Hardware Specifications, Rev. 4
18
Freescale Semiconductor
Electrical and Thermal Characteristics
SYSCLK to output high impedance (all except TS, ARTRY,
SHD0, SHD1)
tKHOZ
—1.8
ns
5
SYSCLK to TS high impedance after precharge
tKHTSPZ
—1
tSYSCLK
3, 4, 5
Maximum delay to ARTRY/SHD0/SHD1 precharge
tKHARP
—1
tSYSCLK
3, 5, 6, 7
SYSCLK to ARTRY/SHD0/SHD1 high impedance after
precharge
tKHARPZ
—2
tSYSCLK
3, 5, 6, 7
Notes:
1. All input specifications are measured from the midpoint of the signal in question to the midpoint of the rising edge of the input
SYSCLK. All output specifications are measured from the midpoint of the rising edge of SYSCLK to the midpoint of the signal
in question. All output timings assume a purely resistive 50-
Ω load (see Figure 4). Input and output timings are measured at
the pin; time-of-flight delays must be added for trace lengths, vias, and connectors in the system.
2. The symbology used for timing specifications herein follows the pattern of t(signal)(state)(reference)(state) for inputs and
t(reference)(state)(signal)(state) for outputs. For example, tIVKH symbolizes the time input signals (I) reach the valid state (V)
relative to the SYSCLK reference (K) going to the high (H) state or input setup time. And tKHOV symbolizes the time from
SYSCLK(K) going high (H) until outputs (O) are valid (V) or output valid time. Input hold time can be read as the time that the
input signal (I) went invalid (X) with respect to the rising clock edge (KH) (note the position of the reference and its state for
inputs) and output hold time can be read as the time from the rising edge (KH) until the output went invalid (OX).
3. tsysclk is the period of the external clock (SYSCLK) in ns. The numbers given in the table must be multiplied by the period of
SYSCLK to compute the actual time duration (in ns) of the parameter in question.
4. According to the bus protocol, TS is driven only by the currently active bus master. It is asserted low and precharged high
before returning to high impedance, as shown in Figure 6. The nominal precharge width for TS is tSYSCLK, that is, one clock
period. Since no master can assert TS on the following clock edge, there is no concern regarding contention with the
precharge. Output valid and output hold timing is tested for the signal asserted. Output valid time is tested for precharge.The
high-impedance behavior is guaranteed by design.
5. Guaranteed by design and not tested
6. According to the bus protocol, ARTRY can be driven by multiple bus masters through the clock period immediately following
AACK. Bus contention is not an issue because any master asserting ARTRY will be driving it low. Any master asserting it low
in the first clock following AACK will then go to high impedance for a fraction of a cycle, then negated for up to an entire cycle
(crossing a bus cycle boundary) before being three-stated again. The nominal precharge width for ARTRY is 1.0 tSYSCLK;
that is, it should be high impedance as shown in Figure 6 before the first opportunity for another master to assert ARTRY.
Output valid and output hold timing is tested for the signal asserted.The high-impedance behavior is guaranteed by design.
7. According to the MPX bus protocol, SHD0 and SHD1 can be driven by multiple bus masters beginning two cycles after TS.
Timing is the same as ARTRY, that is, the signal is high impedance for a fraction of a cycle, then negated for up to an entire
cycle (crossing a bus cycle boundary) before being three-stated again. The nominal precharge width for SHD0 and SHD1 is
1.0 tSYSCLK. The edges of the precharge vary depending on the programmed ratio of core to bus (PLL configurations).
8. BMODE[0:1] and BVSEL[0:1] are mode select inputs. BMODE[0:1] are sampled before and after HRESET negation.
BVSEL[0:1] are sampled before HRESET negation. These parameters represent the input setup and hold times for each
sample. These values are guaranteed by design and not tested. BMODE[0:1] must remain stable after the second sample;
BVSEL[0:1] must remain stable after the first (and only) sample. See Figure 5 for sample timing.
Table 9. Processor Bus AC Timing Specifications1 (continued)
At recommended operating conditions. See Table 4.
Parameter
Symbol 2
All Speed Grades
Unit
Notes
Min
Max
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| KMC7448VU1400ND | 功能描述:微處理器 - MPU APL8 RV2.2.1 1.15V 105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| KMC7448VU1700LC | 功能描述:IC MPU 128BIT 1700MHZ 360-FCCBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC74xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA（25x25） 包裝:托盤 |
| KMC7448VU1700LD | 功能描述:微處理器 - MPU APL8 RV2.2.1 1.3V 105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| KMC7457RX1000NB | 制造商:Freescale Semiconductor 功能描述: |
| KMC7457RX1000NC | 功能描述:微處理器 - MPU APOLO7 RV1.2 SAMPLE PRT RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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