ADMCF327BR Analog Devices Inc, ADMCF327BR Datasheet - Page 4

• Manufacturer Part Number: ADMCF327BR
• Description: IC DSP SW MOTOR CTRLR 28SOIC
• Manufacturer: Analog Devices Inc
• Series: Motor Controlr
• Type: Fixed Pointr

Specifications of ADMCF327BR

• Rohs Status: RoHS non-compliant
• Interface: Synchronous Serial Port (SSP)
• Clock Rate: 20MHz
• Non-volatile Memory: FLASH (12 kB), ROM (12kB)
• On-chip Ram: 2.5kB
• Voltage - I/o: 5.00V
• Voltage - Core: 5.00V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / Rohs Status: Not Compliant

ADMCF327
TIMING PARAMETERS
Parameter
Clock Signals
Signal t
frequency equal to half the instruction rate; a 10 MHz input clock (which is
equivalent to 100 ns) yields a 50 ns processor cycle (equivalent to 20 MHz). When
t
all relevant timing parameters to obtain specification value.
Example: t
Timing Requirements:
t
t
t
Switching Characteristics:
t
t
t
Control Signals
Timing Requirement:
t
PWM Shutdown Signals
Timing Requirement:
t
NOTES
1
Applies after power-up sequence is complete.
CK
CKIN
CKIL
CKIH
CKL
CKH
CKOH
RSP
PWMTPW
values are within the range of 0.5 t
CK
CKH
is defined as 0.5 t
CLKIN Period
CLKIN Width Low
CLKIN Width High
CLKOUT Width Low
CLKOUT Width High
CLKIN High to CLKOUT High
RESET Width Low
PWMTRIP Width Low
= 0.5 t
CK
– 10 ns = 0.5 (50 ns) – 10 ns = 15 ns.
CKIN
. The ADMCF327 uses an input clock with a
CLKOUT
CLKIN
CKIN
period, they should be substituted for
t
CKIL
t
CKL
t
CKIN
t
t
CKH
CKOH
t
CKIH
Min
20
0.5 t
0.5 t
0
5 t
t
100
20
CK
CK
CK
CK
1
– 10
– 10
Max
150
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns