ADSP-2181BST-115 Analog Devices Inc, ADSP-2181BST-115 Datasheet - Page 14

• Manufacturer Part Number: ADSP-2181BST-115
• Description: IC DSP CONTROLLER 16BIT 128TQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2181BST-115

• Rohs Status: RoHS non-compliant
• Interface: Synchronous Serial Port (SSP)
• Clock Rate: 28.8MHz
• Non-volatile Memory: External
• On-chip Ram: 80kB
• Voltage - I/o: 5.00V
• Voltage - Core: 5.00V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP

ADSP-2181
Parameter
Clock Signals and Reset
Timing Requirements:
t
t
t
Switching Characteristics:
t
t
t
Control Signals
Timing Requirement:
t
NOTE
1
Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLKIN cycles assuming stable CLKIN (not including crystal
CKI
CKIL
CKIH
CKL
CKH
CKOH
RSP
oscillator start-up time).
CLKIN Period
CLKIN Width Low
CLKIN Width High
CLKOUT Width Low
CLKOUT Width High
CLKIN High to CLKOUT High
RESET Width Low
CLKOUT
PF(2:0)
RESET
CLKIN
*
*
PF2 IS MODE C, PF1 IS MODE B, PF0 IS MODE A
t
Figure 8. Clock Signals
CKIL
t
CKI
t
MS
t
CKL
–14–
t
MH
Min
50
20
20
0.5t
0.5t
0
5t
t
CKOH
t
CKH
CK
CK
CK
1
t
CKIH
– 7
– 7
Max
150
20
REV. D
ns
ns
ns
ns
ns
ns
ns
Unit