EP7309-CR Cirrus Logic Inc, EP7309-CR Datasheet - Page 14

• Manufacturer Part Number: EP7309-CR
• Description: 32-Bit Microcontroller IC
• Manufacturer: Cirrus Logic Inc

Specifications of EP7309-CR

• Controller Family/series: (ARM7)
• Core Size: 32 Bit
• No. Of Timers 8/12/16/32 Bits: 0 / 0 / 2 / 0
• Interface: SSI, UART
• Embedded Interface Type: SSI, UART
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

EP7309
High-Performance, Low-Power System on Chip
Timings
Timing Diagram Conventions
This data sheet contains timing diagrams. The following key explains the components used in these diagrams. Any variations are
clearly labelled when they occur. Therefore, no additional meaning should be attached unless specifically stated.
C l o c k
H i g h t o L o w
H i g h / L o w
t o H i g h
B u s C h a n g e
B u s V a l i d
U n d e f i n e d / I n v a l i d
V a l i d B u s t o T r i s t a t e
B u s / S i g n a l O m i s s i o n
Figure 2. Legend for Timing Diagrams
Timing Conditions
Unless specified otherwise, the following conditions are true for all timing measurements. All characteristics are specified at
V
= 3.1 - 3.5 V and V
= 0 V over an operating temperature of -40°C to +85°C. Pin loadings is 50 pF. The timing values are
DDIO
SS
referenced to 1/2 V
.
DD
©
Copyright Cirrus Logic, Inc. 2005
14
(All Rights Reserved)
DS507F1