ADSP-2187LKST-210 Analog Devices Inc, ADSP-2187LKST-210 Datasheet - Page 23

• Manufacturer Part Number: ADSP-2187LKST-210
• Description: IC DSP CONTROLLER 16BIT 100TQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2187LKST-210

• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Serial Port
• Clock Rate: 52MHz
• Non-volatile Memory: External
• On-chip Ram: 160kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP

Clock Signals and Reset
Table 14. Clock Signals and Reset
1
Parameter
Timing Requirements:
t
t
t
Switching Characteristics:
t
t
t
Control Signals Timing Requirements:
t
t
t
Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLKIN cycles, assuming stable CLKIN (not including crystal oscillator
CKI
CKIL
CKIH
CKL
CKH
CKOH
RSP
MS
MH
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
Mode Setup Before RESET High
Mode Hold After RESET High
MODE A D
CLKOUT
RESET
CLKIN
1
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Rev. C | Page 23 of 48 | January 2008
Figure 16. Clock Signals and Reset
t
t
CKIL
RSP
t
t
CKI
MS
Min
50
20
20
0.5t
0.5t
0
5t
2
5
CK
ADSP-2184L, ADSP-2186L
t
CKL
CK
CK
– 7
– 7
t
MH
t
CKOH
t
CKH
Max
150
20
t
CKIH
Min
38
15
15
0.5t
0.5t
0
5t
2
5
CK
ADSP-2185L, ADSP-2187L
CK
CK
– 7
– 7
Max
100
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns