diff --git a/embassy-stm32/src/flash/asynch.rs b/embassy-stm32/src/flash/asynch.rs
index de53f6c8f..6ad1e90d4 100644
--- a/embassy-stm32/src/flash/asynch.rs
+++ b/embassy-stm32/src/flash/asynch.rs
@@ -1,5 +1,9 @@
+use core::marker::PhantomData;
+
 use atomic_polyfill::{fence, Ordering};
+use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
 use embassy_hal_common::drop::OnDrop;
+use embassy_hal_common::into_ref;
 use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embassy_sync::mutex::Mutex;
 
@@ -7,10 +11,28 @@ use super::{
     blocking_read, ensure_sector_aligned, family, get_sector, Async, Error, Flash, FlashLayout, FLASH_BASE, FLASH_SIZE,
     MAX_ERASE_SIZE, READ_SIZE, WRITE_SIZE,
 };
+use crate::peripherals::FLASH;
+use crate::{interrupt, Peripheral};
 
 pub(super) static REGION_ACCESS: Mutex<CriticalSectionRawMutex, ()> = Mutex::new(());
 
 impl<'d> Flash<'d, Async> {
+    pub fn new(
+        p: impl Peripheral<P = FLASH> + 'd,
+        _irq: impl interrupt::Binding<crate::interrupt::FLASH, InterruptHandler> + 'd,
+    ) -> Self {
+        into_ref!(p);
+
+        let flash_irq = unsafe { crate::interrupt::FLASH::steal() };
+        flash_irq.unpend();
+        flash_irq.enable();
+
+        Self {
+            inner: p,
+            _mode: PhantomData,
+        }
+    }
+
     pub fn into_regions(self) -> FlashLayout<'d, Async> {
         family::set_default_layout();
         FlashLayout::new(self.inner)
@@ -25,6 +47,15 @@ impl<'d> Flash<'d, Async> {
     }
 }
 
+/// Interrupt handler
+pub struct InterruptHandler;
+
+impl interrupt::Handler<crate::interrupt::FLASH> for InterruptHandler {
+    unsafe fn on_interrupt() {
+        family::on_interrupt();
+    }
+}
+
 impl embedded_storage_async::nor_flash::ReadNorFlash for Flash<'_, Async> {
     const READ_SIZE: usize = READ_SIZE;
 
diff --git a/embassy-stm32/src/flash/common.rs b/embassy-stm32/src/flash/common.rs
index c190eaf9a..cc0e2572b 100644
--- a/embassy-stm32/src/flash/common.rs
+++ b/embassy-stm32/src/flash/common.rs
@@ -1,7 +1,6 @@
 use core::marker::PhantomData;
 
 use atomic_polyfill::{fence, Ordering};
-use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
 use embassy_hal_common::drop::OnDrop;
 use embassy_hal_common::{into_ref, PeripheralRef};
 use stm32_metapac::FLASH_BASE;
@@ -11,29 +10,11 @@ use super::{
     READ_SIZE, WRITE_SIZE,
 };
 use crate::peripherals::FLASH;
-use crate::{interrupt, Peripheral};
+use crate::Peripheral;
 
 pub struct Flash<'d, MODE = Async> {
     pub(crate) inner: PeripheralRef<'d, FLASH>,
-    _mode: PhantomData<MODE>,
-}
-
-impl<'d> Flash<'d, Async> {
-    pub fn new(
-        p: impl Peripheral<P = FLASH> + 'd,
-        _irq: impl interrupt::Binding<crate::interrupt::FLASH, InterruptHandler> + 'd,
-    ) -> Self {
-        into_ref!(p);
-
-        let flash_irq = unsafe { crate::interrupt::FLASH::steal() };
-        flash_irq.unpend();
-        flash_irq.enable();
-
-        Self {
-            inner: p,
-            _mode: PhantomData,
-        }
-    }
+    pub(crate) _mode: PhantomData<MODE>,
 }
 
 impl<'d> Flash<'d, Blocking> {
@@ -74,15 +55,6 @@ impl<'d, MODE> Flash<'d, MODE> {
     }
 }
 
-/// Interrupt handler
-pub struct InterruptHandler;
-
-impl interrupt::Handler<crate::interrupt::FLASH> for InterruptHandler {
-    unsafe fn on_interrupt() {
-        family::on_interrupt();
-    }
-}
-
 pub(super) fn blocking_read(base: u32, size: u32, offset: u32, bytes: &mut [u8]) -> Result<(), Error> {
     if offset + bytes.len() as u32 > size {
         return Err(Error::Size);
diff --git a/embassy-stm32/src/flash/f0.rs b/embassy-stm32/src/flash/f0.rs
index bf601f05c..e9916d14b 100644
--- a/embassy-stm32/src/flash/f0.rs
+++ b/embassy-stm32/src/flash/f0.rs
@@ -13,10 +13,6 @@ pub const fn get_flash_regions() -> &'static [&'static FlashRegion] {
     &FLASH_REGIONS
 }
 
-pub(crate) unsafe fn on_interrupt() {
-    unimplemented!();
-}
-
 pub(crate) unsafe fn lock() {
     pac::FLASH.cr().modify(|w| w.set_lock(true));
 }
diff --git a/embassy-stm32/src/flash/f3.rs b/embassy-stm32/src/flash/f3.rs
index 5b566a62f..4e65f5580 100644
--- a/embassy-stm32/src/flash/f3.rs
+++ b/embassy-stm32/src/flash/f3.rs
@@ -13,10 +13,6 @@ pub const fn get_flash_regions() -> &'static [&'static FlashRegion] {
     &FLASH_REGIONS
 }
 
-pub(crate) unsafe fn on_interrupt() {
-    unimplemented!();
-}
-
 pub(crate) unsafe fn lock() {
     pac::FLASH.cr().modify(|w| w.set_lock(true));
 }
diff --git a/embassy-stm32/src/flash/f7.rs b/embassy-stm32/src/flash/f7.rs
index f0c6bf81d..e6267e178 100644
--- a/embassy-stm32/src/flash/f7.rs
+++ b/embassy-stm32/src/flash/f7.rs
@@ -12,10 +12,6 @@ pub const fn get_flash_regions() -> &'static [&'static FlashRegion] {
     &FLASH_REGIONS
 }
 
-pub(crate) unsafe fn on_interrupt() {
-    unimplemented!();
-}
-
 pub(crate) unsafe fn lock() {
     pac::FLASH.cr().modify(|w| w.set_lock(true));
 }
diff --git a/embassy-stm32/src/flash/h7.rs b/embassy-stm32/src/flash/h7.rs
index ee824ed2b..d09ebc0dd 100644
--- a/embassy-stm32/src/flash/h7.rs
+++ b/embassy-stm32/src/flash/h7.rs
@@ -17,10 +17,6 @@ pub fn get_flash_regions() -> &'static [&'static FlashRegion] {
     &FLASH_REGIONS
 }
 
-pub(crate) unsafe fn on_interrupt() {
-    unimplemented!();
-}
-
 pub(crate) unsafe fn lock() {
     pac::FLASH.bank(0).cr().modify(|w| w.set_lock(true));
     if is_dual_bank() {
diff --git a/embassy-stm32/src/flash/l.rs b/embassy-stm32/src/flash/l.rs
index 0a5b6301e..c4bbd5477 100644
--- a/embassy-stm32/src/flash/l.rs
+++ b/embassy-stm32/src/flash/l.rs
@@ -12,10 +12,6 @@ pub const fn get_flash_regions() -> &'static [&'static FlashRegion] {
     &FLASH_REGIONS
 }
 
-pub(crate) unsafe fn on_interrupt() {
-    unimplemented!();
-}
-
 pub(crate) unsafe fn lock() {
     #[cfg(any(flash_wl, flash_wb, flash_l4))]
     pac::FLASH.cr().modify(|w| w.set_lock(true));
diff --git a/embassy-stm32/src/flash/mod.rs b/embassy-stm32/src/flash/mod.rs
index 02f6c5320..2cc92f518 100644
--- a/embassy-stm32/src/flash/mod.rs
+++ b/embassy-stm32/src/flash/mod.rs
@@ -1,10 +1,12 @@
 use embedded_storage::nor_flash::{NorFlashError, NorFlashErrorKind};
 
 #[cfg(all(feature = "nightly", flash_f4))]
-pub mod asynch;
+mod asynch;
 #[cfg(flash)]
 mod common;
 
+#[cfg(all(feature = "nightly", flash_f4))]
+pub use asynch::InterruptHandler;
 #[cfg(flash)]
 pub use common::*;
 
diff --git a/embassy-stm32/src/flash/other.rs b/embassy-stm32/src/flash/other.rs
index c007f1178..ccdcfeb7a 100644
--- a/embassy-stm32/src/flash/other.rs
+++ b/embassy-stm32/src/flash/other.rs
@@ -8,10 +8,6 @@ pub const fn get_flash_regions() -> &'static [&'static FlashRegion] {
     &FLASH_REGIONS
 }
 
-pub(crate) unsafe fn on_interrupt() {
-    unimplemented!();
-}
-
 pub(crate) unsafe fn lock() {
     unimplemented!();
 }