MB86831 FUJITSU [Fujitsu Component Limited.], MB86831 Datasheet - Page 51

• Manufacturer Part Number: MB86831
• Description: 32-bit Embedded Controller
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

(Continued)
P:Period (Cycle time)
* : RDYOUT# at the external ready mode is provided for from READY# input.
Notes
*: MB86836 108MHz version is under developement.
Classifica-
33.3 MHz 33.3 MHz 66.6 MHz
IRC input
27 MHz
36 MHz
40 MHz
CLKIN
Coutput
DRAM-
• Each parameter is valid within the specified ranges of temperatures and supply voltages unless otherwise
• Each voltage value is based on the GND (V
• Do not leave more than one output pins short-circuited for 1 second or more.
• The external output load capacitance is 30 pF.
• The specifications of pins other than those pins designated as asynchronous inputs and than the RDYOUT#
• These specifications are subject to change for improvement.
• The reset period requires at least 4 CLKIN cycles. The PLL oscillation stabilization delay time requires at least
• An AC characteristic of pins and internal maximum operation frequency is separately defined.
• The maximum operation frequency of an external bus is 40MHz though the maximum internal operation
• Relation between external bus clock and internal clock
tion
noted.
V, the input level is 0.4 to 2.4 V, and the input rise time and fall time are 2 ns or less.
pin in external ready mode are determined by the rising edge of the external clock (CLKIN).
4000 clock (CLKIN) pulses. For 40 MHz (25 ns) clock input, for example, the reset signal must therefore be
negated 100 s later.
frequency are 90 MHz or 100 MHz (CLKIN Min.=25ns).Therefore,when an external bus is used with 40MHz,
an internal frequency is 80 MHz
27 MHz
40 MHz
36MHz
Delay time
Hold time
Delay time
Hold time
Delay time
Hold time
Delay time
Hold time
Setup time
Hold time
“H” level period
“L” level period
1
Parameter
54 MHz
72 MHz
80 MHz
MB86836(90MHz)
2
(V
81 MHz
DD5
N/A
N/A
N/A
3
3.3 V
N/A
N/A
N/A
N/A
SS
4
0.15 V, V
DWE0# to DWE3#
RAS0# to RAS3#
CAS0# to CAS3#
0.0 V) level. The timing measurement reference point is 1.5
IRQ15 to IRQ8
N/A
N/A
N/A
N/A
Symbol
5
DOE#
DD3
33.3 MHz 66.6 MHz
27 MHz
40 MHz
36MHz
2.5 V
1
0.1 V, V
54 MHz
72 MHz
80 MHz
MB86836(108MHz)*
MB86830 Series
2
2
2
SS
Min.
P
P
Asynchronous
Asynchronous
2
2
2
2
100MHz
108MHz
81 MHz
0.0 V, T
10
10
N/A
Value
3
A
Max.
15
15
15
15
108 MHz
0 C to
N/A
N/A
N/A
4
Unit
70 C)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
N/A
N/A
N/A
N/A
5
51