MB9B510R Datasheet, PDF (81/129 Pages) SPANSION – This document states the current technical specifications regarding

DataSheet
(7) External Bus Timing
・ External bus clock output characteristics
(V_CC = 2.7V to 5.5V, V_SS = 0V, T_A = - 40°C to + 85°C)
Parameter
Symbol Pin name
Conditions
Value
Min Max
Unit
Output frequency
t_CYCLE
MCLKOUT*¹
V_CC ≥ 4.5 V
V_CC < 4.5 V
-
-
50*²
MHz
32*³
MHz
*1: External bus clock (MCLKOUT) is divided clock of HCLK.
For more information about setting of clock divider, see "CHPATER 12: External Bus Interface" in "FM3
Family PERIPHERAL MANUAL".
When external bus clock is not output, this characteristic does not give any effect on external bus operation.
*2: When AHB bus clock frequency is more than 100MHz, the divider setting for MCLKOUT must be more
than 4.
*3: When AHB bus clock frequency is more than 64MHz, the divider setting for MCLKOUT must be more
than 4.
MCLKOUT
・ External bus signal input/output Characteristics
(V_CC = 2.7V to 5.5V, V_SS = 0V, T_A = - 40°C to + 85°C)
Parameter
Symbol Conditions
Value
Unit Remarks
V_IH
Signal input characteristics
V_IL
-
V_OH
Signal output characteristics
V_OL
0.8 × V_CC
V
0.2 × V_CC
V
0.8 × V_CC
V
0.2 × V_CC
V
Input signal
VIH
VIL
VIH
VIL
Output signal
VOH
VOH
VOL
VOL
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MB9B510R-DS706-00025-3v1-E, March 31, 2015