參數(shù)資料
型號: PID9q-604e
廠商: IBM Microeletronics
英文描述: 32-Bit RISC Microprocessor(32位精簡指令集微處理器)
中文描述: 32位RISC微處理器(32位精簡指令集微處理器)
文件頁數(shù): 9/29頁
文件大?。?/td> 543K
代理商: PID9Q-604E
9/17/99 Revision 1.4
PID9q-604e Hardware Datasheet
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
9
Figure 1 provides the SYSCLK input timing diagram.
Figure 1. SYSCLK Input Timing Diagram
SYSCLK jitter
-
±
150
-
±
150
-
±
150
-
±
150
ps
4
604e internal PLL relock
time
-
100
-
100
-
100
-
100
μ
s
3, 5
Notes:
1.
Caution
: The SYSCLK frequency and PLL_CFG[0–3] settings must be chosen such that the resulting SYSCLK
(bus) frequency, CPU (core) frequency, and PLL (VCO) frequency do not exceed their respective maximum or
minimum operating frequencies. Refer to the PLL_CFG[0–3] signal description in Section 1.8, “System Design
Information,” for valid PLL_CFG[0–3] settings, and to Section 1.9, “IBM Part Number Key,” for available frequencies
and part numbers.
2. Rise and fall times for the SYSCLK input are measured from 0.4 V to 1.8 V.
3. Timing is guaranteed by design and characterization, and is not tested.
4. Cycle-to-cycle jitter, and is guaranteed by design.
5. PLL-relock time is the maximum time required for PLL lock after a stable Vdd, OVdd, AVdd, and SYSCLK are
reached during the power-on reset sequence. Also note that HRESET must be held asserted for a minimum of 255
bus clocks after the PLL-relock time (100
μ
s) during the power-on reset sequence.
6. 604e processors are tested at the maximum SYSCLK frequencies shown in the AC timing specifications. It is
possible to attain higher SYSCLK frequencies through proper system design.
Table 6. Clock AC Timing Specifications (Continued)
Vdd = AVdd = 1.9 ±100 mV dc, OVdd = 3.3
±
5% V dc, GND = 0 V dc, 0
T
j
105 °C
Num
Characteristic
250 MHz
300 MHz
333 MHz
350 MHz
Unit
Notes
Min
Max
Min
Max
Min
Max
Min
Max
VM
CVil
CVih
SYSCLK
2
3
4
VM = Midpoint Voltage (0.9 V)
4
1
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